1[{"atomicNumber": 1, "symbol": "H", "name": "Hydrogen", "atomicMass": "1.00794(4)", "electronicConfiguration": "1s1", "electronegativity": 2.2, "atomicRadius": 37, "ionRadius": "unknown", "vanDerWaalsRadius": 120, "ionizationEnergy": 1312, "electronAffinity": -73, "oxidationStates": "-1, 1", "standardState": "gas", "bondingType": "diatomic", "meltingPoint": 14, "boilingPoint": 20, "density": 8.99e-05, "groupBlock": "nonmetal", "yearDiscovered": 1766, "block": "s", "cpkHexColor": "FFFFFF", "period": 1, "group": 1}, {"atomicNumber": 2, "symbol": "He", "name": "Helium", "atomicMass": "4.002602(2)", "electronicConfiguration": "1s2", "electronegativity": "unknown", "atomicRadius": 32, "ionRadius": "unknown", "vanDerWaalsRadius": 140, "ionizationEnergy": 2372, "electronAffinity": 0, "oxidationStates": "unknown", "standardState": "gas", "bondingType": "atomic", "meltingPoint": "unknown", "boilingPoint": 4, "density": 0.0001785, "groupBlock": "noble gas", "yearDiscovered": 1868, "block": "p", "cpkHexColor": "D9FFFF", "period": 1, "group": 18}, {"atomicNumber": 3, "symbol": "Li", "name": "Lithium", "atomicMass": "6.941(2)", "electronicConfiguration": "[He] 2s1", "electronegativity": 0.98, "atomicRadius": 134, "ionRadius": "76 (+1)", "vanDerWaalsRadius": 182, "ionizationEnergy": 520, "electronAffinity": -60, "oxidationStates": 1, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 454, "boilingPoint": 1615, "density": 0.535, "groupBlock": "alkali metal", "yearDiscovered": 1817, "block": "s", "cpkHexColor": "CC80FF", "period": 2, "group": 1}, {"atomicNumber": 4, "symbol": "Be", "name": "Beryllium", "atomicMass": "9.012182(3)", "electronicConfiguration": "[He] 2s2", "electronegativity": 1.57, "atomicRadius": 90, "ionRadius": "45 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 900, "electronAffinity": 0, "oxidationStates": 2, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1560, "boilingPoint": 2743, "density": 1.848, "groupBlock": "alkaline earth metal", "yearDiscovered": 1798, "block": "s", "cpkHexColor": "C2FF00", "period": 2, "group": 2}, {"atomicNumber": 5, "symbol": "B", "name": "Boron", "atomicMass": "10.811(7)", "electronicConfiguration": "[He] 2s2 2p1", "electronegativity": 2.04, "atomicRadius": 82, "ionRadius": "27 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 801, "electronAffinity": -27, "oxidationStates": "1, 2, 3", "standardState": "solid", "bondingType": "covalent network", "meltingPoint": 2348, "boilingPoint": 4273, "density": 2.46, "groupBlock": "metalloid", "yearDiscovered": 1807, "block": "p", "cpkHexColor": "FFB5B5", "period": 1, "group": 13}, {"atomicNumber": 6, "symbol": "C", "name": "Carbon", "atomicMass": "12.0107(8)", "electronicConfiguration": "[He] 2s2 2p2", "electronegativity": 2.55, "atomicRadius": 77, "ionRadius": "16 (+4)", "vanDerWaalsRadius": 170, "ionizationEnergy": 1087, "electronAffinity": -154, "oxidationStates": "-4, -3, -2, -1, 1, 2, 3, 4", "standardState": "solid", "bondingType": "covalent network", "meltingPoint": 3823, "boilingPoint": 4300, "density": 2.26, "groupBlock": "nonmetal", "yearDiscovered": "Ancient", "block": "p", "cpkHexColor": "909090", "period": 2, "group": 14}, {"atomicNumber": 7, "symbol": "N", "name": "Nitrogen", "atomicMass": "14.0067(2)", "electronicConfiguration": "[He] 2s2 2p3", "electronegativity": 3.04, "atomicRadius": 75, "ionRadius": "146 (-3)", "vanDerWaalsRadius": 155, "ionizationEnergy": 1402, "electronAffinity": -7, "oxidationStates": "-3, -2, -1, 1, 2, 3, 4, 5", "standardState": "gas", "bondingType": "diatomic", "meltingPoint": 63, "boilingPoint": 77, "density": 0.001251, "groupBlock": "nonmetal", "yearDiscovered": 1772, "block": "p", "cpkHexColor": "3050F8", "period": 2, "group": 15}, {"atomicNumber": 8, "symbol": "O", "name": "Oxygen", "atomicMass": "15.9994(3)", "electronicConfiguration": "[He] 2s2 2p4", "electronegativity": 3.44, "atomicRadius": 73, "ionRadius": "140 (-2)", "vanDerWaalsRadius": 152, "ionizationEnergy": 1314, "electronAffinity": -141, "oxidationStates": "-2, -1, 1, 2", "standardState": "gas", "bondingType": "diatomic", "meltingPoint": 55, "boilingPoint": 90, "density": 0.001429, "groupBlock": "nonmetal", "yearDiscovered": 1774, "block": "p", "cpkHexColor": "FF0D0D", "period": 2, "group": 16}, {"atomicNumber": 9, "symbol": "F", "name": "Fluorine", "atomicMass": "18.9984032(5)", "electronicConfiguration": "[He] 2s2 2p5", "electronegativity": 3.98, "atomicRadius": 71, "ionRadius": "133 (-1)", "vanDerWaalsRadius": 147, "ionizationEnergy": 1681, "electronAffinity": -328, "oxidationStates": -1, "standardState": "gas", "bondingType": "atomic", "meltingPoint": 54, "boilingPoint": 85, "density": 0.001696, "groupBlock": "halogen", "yearDiscovered": 1670, "block": "p", "cpkHexColor": "9eaf51", "period": 2, "group": 17}, {"atomicNumber": 10, "symbol": "Ne", "name": "Neon", "atomicMass": "20.1797(6)", "electronicConfiguration": "[He] 2s2 2p6", "electronegativity": "unknown", "atomicRadius": 69, "ionRadius": "unknown", "vanDerWaalsRadius": 154, "ionizationEnergy": 2081, "electronAffinity": 0, "oxidationStates": "unknown", "standardState": "gas", "bondingType": "atomic", "meltingPoint": 25, "boilingPoint": 27, "density": 0.0009, "groupBlock": "noble gas", "yearDiscovered": 1898, "block": "p", "cpkHexColor": "B3E3F5", "period": 2, "group": 18}, {"atomicNumber": 11, "symbol": "Na", "name": "Sodium", "atomicMass": "22.98976928(2)", "electronicConfiguration": "[Ne] 3s1", "electronegativity": 0.93, "atomicRadius": 154, "ionRadius": "102 (+1)", "vanDerWaalsRadius": 227, "ionizationEnergy": 496, "electronAffinity": -53, "oxidationStates": "-1, 1", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 371, "boilingPoint": 1156, "density": 0.968, "groupBlock": "alkali metal", "yearDiscovered": 1807, "block": "s", "cpkHexColor": "AB5CF2", "period": 3, "group": 1}, {"atomicNumber": 12, "symbol": "Mg", "name": "Magnesium", "atomicMass": "24.3050(6)", "electronicConfiguration": "[Ne] 3s2", "electronegativity": 1.31, "atomicRadius": 130, "ionRadius": "72 (+2)", "vanDerWaalsRadius": 173, "ionizationEnergy": 738, "electronAffinity": 0, "oxidationStates": "1, 2", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 923, "boilingPoint": 1363, "density": 1.738, "groupBlock": "alkaline earth metal", "yearDiscovered": 1808, "block": "s", "cpkHexColor": "8AFF00", "period": 3, "group": 2}, {"atomicNumber": 13, "symbol": "Al", "name": "Aluminum", "atomicMass": "26.9815386(8)", "electronicConfiguration": "[Ne] 3s2 3p1", "electronegativity": 1.61, "atomicRadius": 118, "ionRadius": "53.5 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 578, "electronAffinity": -43, "oxidationStates": "1, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 933, "boilingPoint": 2792, "density": 2.7, "groupBlock": "metal", "yearDiscovered": "Ancient", "block": "p", "cpkHexColor": "BFA6A6", "period": 3, "group": 13}, {"atomicNumber": 14, "symbol": "Si", "name": "Silicon", "atomicMass": "28.0855(3)", "electronicConfiguration": "[Ne] 3s2 3p2", "electronegativity": 1.9, "atomicRadius": 111, "ionRadius": "40 (+4)", "vanDerWaalsRadius": 210, "ionizationEnergy": 787, "electronAffinity": -134, "oxidationStates": "-4, -3, -2, -1, 1, 2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1687, "boilingPoint": 3173, "density": 2.33, "groupBlock": "metalloid", "yearDiscovered": 1854, "block": "p", "cpkHexColor": "F0C8A0", "period": 3, "group": 14}, {"atomicNumber": 15, "symbol": "P", "name": "Phosphorus", "atomicMass": "30.973762(2)", "electronicConfiguration": "[Ne] 3s2 3p3", "electronegativity": 2.19, "atomicRadius": 106, "ionRadius": "44 (+3)", "vanDerWaalsRadius": 180, "ionizationEnergy": 1012, "electronAffinity": -72, "oxidationStates": "-3, -2, -1, 1, 2, 3, 4, 5", "standardState": "solid", "bondingType": "covalent network", "meltingPoint": 317, "boilingPoint": 554, "density": 1.823, "groupBlock": "nonmetal", "yearDiscovered": 1669, "block": "p", "cpkHexColor": "FF8000", "period": 3, "group": 15}, {"atomicNumber": 16, "symbol": "S", "name": "Sulfur", "atomicMass": "32.065(5)", "electronicConfiguration": "[Ne] 3s2 3p4", "electronegativity": 2.58, "atomicRadius": 102, "ionRadius": "184 (-2)", "vanDerWaalsRadius": 180, "ionizationEnergy": 1000, "electronAffinity": -200, "oxidationStates": "-2, -1, 1, 2, 3, 4, 5, 6", "standardState": "solid", "bondingType": "covalent network", "meltingPoint": 388, "boilingPoint": 718, "density": 1.96, "groupBlock": "nonmetal", "yearDiscovered": "Ancient", "block": "p", "cpkHexColor": "FFFF30", "period": 3, "group": 16}, {"atomicNumber": 17, "symbol": "Cl", "name": "Chlorine", "atomicMass": "35.453(2)", "electronicConfiguration": "[Ne] 3s2 3p5", "electronegativity": 3.16, "atomicRadius": 99, "ionRadius": "181 (-1)", "vanDerWaalsRadius": 175, "ionizationEnergy": 1251, "electronAffinity": -349, "oxidationStates": "-1, 1, 2, 3, 4, 5, 6, 7", "standardState": "gas", "bondingType": "covalent network", "meltingPoint": 172, "boilingPoint": 239, "density": 0.003214, "groupBlock": "halogen", "yearDiscovered": 1774, "block": "p", "cpkHexColor": "1FF01F", "period": 3, "group": 17}, {"atomicNumber": 18, "symbol": "Ar", "name": "Argon", "atomicMass": "39.948(1)", "electronicConfiguration": "[Ne] 3s2 3p6", "electronegativity": "unknown", "atomicRadius": 97, "ionRadius": "unknown", "vanDerWaalsRadius": 188, "ionizationEnergy": 1521, "electronAffinity": 0, "oxidationStates": "unknown", "standardState": "gas", "bondingType": "atomic", "meltingPoint": 84, "boilingPoint": 87, "density": 0.001784, "groupBlock": "noble gas", "yearDiscovered": 1894, "block": "p", "cpkHexColor": "80D1E3", "period": 3, "group": 18}, {"atomicNumber": 19, "symbol": "K", "name": "Potassium", "atomicMass": "39.0983(1)", "electronicConfiguration": "[Ar] 4s1", "electronegativity": 0.82, "atomicRadius": 196, "ionRadius": "138 (+1)", "vanDerWaalsRadius": 275, "ionizationEnergy": 419, "electronAffinity": -48, "oxidationStates": 1, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 337, "boilingPoint": 1032, "density": 0.856, "groupBlock": "alkali metal", "yearDiscovered": 1807, "block": "s", "cpkHexColor": "8F40D4", "period": 4, "group": 1}, {"atomicNumber": 20, "symbol": "Ca", "name": "Calcium", "atomicMass": "40.078(4)", "electronicConfiguration": "[Ar] 4s2", "electronegativity": 1, "atomicRadius": 174, "ionRadius": "100 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 590, "electronAffinity": -2, "oxidationStates": 2, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1115, "boilingPoint": 1757, "density": 1.55, "groupBlock": "alkaline earth metal", "yearDiscovered": "Ancient", "block": "s", "cpkHexColor": "3DFF00", "period": 4, "group": 2}, {"atomicNumber": 21, "symbol": "Sc", "name": "Scandium", "atomicMass": "44.955912(6)", "electronicConfiguration": "[Ar] 3d1 4s2", "electronegativity": 1.36, "atomicRadius": 144, "ionRadius": "74.5 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 633, "electronAffinity": -18, "oxidationStates": "1, 2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1814, "boilingPoint": 3103, "density": 2.985, "groupBlock": "transition metal", "yearDiscovered": 1876, "block": "d", "cpkHexColor": "E6E6E6", "period": 4, "group": 3}, {"atomicNumber": 22, "symbol": "Ti", "name": "Titanium", "atomicMass": "47.867(1)", "electronicConfiguration": "[Ar] 3d2 4s2", "electronegativity": 1.54, "atomicRadius": 136, "ionRadius": "86 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 659, "electronAffinity": -8, "oxidationStates": "-1, 2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1941, "boilingPoint": 3560, "density": 4.507, "groupBlock": "transition metal", "yearDiscovered": 1791, "block": "d", "cpkHexColor": "BFC2C7", "period": 4, "group": 4}, {"atomicNumber": 23, "symbol": "V", "name": "Vanadium", "atomicMass": "50.9415(1)", "electronicConfiguration": "[Ar] 3d3 4s2", "electronegativity": 1.63, "atomicRadius": 125, "ionRadius": "79 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 651, "electronAffinity": -51, "oxidationStates": "-1, 2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2183, "boilingPoint": 3680, "density": 6.11, "groupBlock": "transition metal", "yearDiscovered": 1803, "block": "d", "cpkHexColor": "A6A6AB", "period": 4, "group": 5}, {"atomicNumber": 24, "symbol": "Cr", "name": "Chromium", "atomicMass": "51.9961(6)", "electronicConfiguration": "[Ar] 3d5 4s1", "electronegativity": 1.66, "atomicRadius": 127, "ionRadius": "80 (+2*)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 653, "electronAffinity": -64, "oxidationStates": "-2, -1, 1, 2, 3, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2180, "boilingPoint": 2944, "density": 7.14, "groupBlock": "transition metal", "yearDiscovered": "Ancient", "block": "d", "cpkHexColor": "8A99C7", "period": 4, "group": 6}, {"atomicNumber": 25, "symbol": "Mn", "name": "Manganese", "atomicMass": "54.938045(5)", "electronicConfiguration": "[Ar] 3d5 4s2", "electronegativity": 1.55, "atomicRadius": 139, "ionRadius": "67 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 717, "electronAffinity": 0, "oxidationStates": "-3, -2, -1, 1, 2, 3, 4, 5, 6, 7", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1519, "boilingPoint": 2334, "density": 7.47, "groupBlock": "transition metal", "yearDiscovered": 1774, "block": "d", "cpkHexColor": "9C7AC7", "period": 4, "group": 7}, {"atomicNumber": 26, "symbol": "Fe", "name": "Iron", "atomicMass": "55.845(2)", "electronicConfiguration": "[Ar] 3d6 4s2", "electronegativity": 1.83, "atomicRadius": 125, "ionRadius": "78 (+2*)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 763, "electronAffinity": -16, "oxidationStates": "-2, -1, 1, 2, 3, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1811, "boilingPoint": 3134, "density": 7.874, "groupBlock": "transition metal", "yearDiscovered": "Ancient", "block": "d", "cpkHexColor": "E06633", "period": 4, "group": 8}, {"atomicNumber": 27, "symbol": "Co", "name": "Cobalt", "atomicMass": "58.933195(5)", "electronicConfiguration": "[Ar] 3d7 4s2", "electronegativity": 1.88, "atomicRadius": 126, "ionRadius": "74.5 (+2*)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 760, "electronAffinity": -64, "oxidationStates": "-1, 1, 2, 3, 4, 5", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1768, "boilingPoint": 3200, "density": 8.9, "groupBlock": "transition metal", "yearDiscovered": "Ancient", "block": "d", "cpkHexColor": "F090A0", "period": 4, "group": 9}, {"atomicNumber": 28, "symbol": "Ni", "name": "Nickel", "atomicMass": "58.6934(4)", "electronicConfiguration": "[Ar] 3d8 4s2", "electronegativity": 1.91, "atomicRadius": 121, "ionRadius": "69 (+2)", "vanDerWaalsRadius": 163, "ionizationEnergy": 737, "electronAffinity": -112, "oxidationStates": "-1, 1, 2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1728, "boilingPoint": 3186, "density": 8.908, "groupBlock": "transition metal", "yearDiscovered": 1751, "block": "d", "cpkHexColor": "50D050", "period": 4, "group": 10}, {"atomicNumber": 29, "symbol": "Cu", "name": "Copper", "atomicMass": "63.546(3)", "electronicConfiguration": "[Ar] 3d10 4s1", "electronegativity": 1.9, "atomicRadius": 138, "ionRadius": "77 (+1)", "vanDerWaalsRadius": 140, "ionizationEnergy": 746, "electronAffinity": -118, "oxidationStates": "1, 2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1358, "boilingPoint": 3200, "density": 8.92, "groupBlock": "transition metal", "yearDiscovered": "Ancient", "block": "d", "cpkHexColor": "C88033", "period": 4, "group": 11}, {"atomicNumber": 30, "symbol": "Zn", "name": "Zinc", "atomicMass": "65.38(2)", "electronicConfiguration": "[Ar] 3d10 4s2", "electronegativity": 1.65, "atomicRadius": 131, "ionRadius": "74 (+2)", "vanDerWaalsRadius": 139, "ionizationEnergy": 906, "electronAffinity": 0, "oxidationStates": 2, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 693, "boilingPoint": 1180, "density": 7.14, "groupBlock": "transition metal", "yearDiscovered": 1746, "block": "d", "cpkHexColor": "7D80B0", "period": 4, "group": 12}, {"atomicNumber": 31, "symbol": "Ga", "name": "Gallium", "atomicMass": "69.723(1)", "electronicConfiguration": "[Ar] 3d10 4s2 4p1", "electronegativity": 1.81, "atomicRadius": 126, "ionRadius": "62 (+3)", "vanDerWaalsRadius": 187, "ionizationEnergy": 579, "electronAffinity": -29, "oxidationStates": "1, 2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 303, "boilingPoint": 2477, "density": 5.904, "groupBlock": "metal", "yearDiscovered": 1875, "block": "p", "cpkHexColor": "C28F8F", "period": 4, "group": 13}, {"atomicNumber": 32, "symbol": "Ge", "name": "Germanium", "atomicMass": "72.64(1)", "electronicConfiguration": "[Ar] 3d10 4s2 4p2", "electronegativity": 2.01, "atomicRadius": 122, "ionRadius": "73 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 762, "electronAffinity": -119, "oxidationStates": "-4, 1, 2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1211, "boilingPoint": 3093, "density": 5.323, "groupBlock": "metalloid", "yearDiscovered": 1886, "block": "p", "cpkHexColor": "668F8F", "period": 4, "group": 14}, {"atomicNumber": 33, "symbol": "As", "name": "Arsenic", "atomicMass": "74.92160(2)", "electronicConfiguration": "[Ar] 3d10 4s2 4p3", "electronegativity": 2.18, "atomicRadius": 119, "ionRadius": "58 (+3)", "vanDerWaalsRadius": 185, "ionizationEnergy": 947, "electronAffinity": -78, "oxidationStates": "-3, 2, 3, 5", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1090, "boilingPoint": 887, "density": 5.727, "groupBlock": "metalloid", "yearDiscovered": "Ancient", "block": "p", "cpkHexColor": "BD80E3", "period": 4, "group": 15}, {"atomicNumber": 34, "symbol": "Se", "name": "Selenium", "atomicMass": "78.96(3)", "electronicConfiguration": "[Ar] 3d10 4s2 4p4", "electronegativity": 2.55, "atomicRadius": 116, "ionRadius": "198 (-2)", "vanDerWaalsRadius": 190, "ionizationEnergy": 941, "electronAffinity": -195, "oxidationStates": "-2, 2, 4, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 494, "boilingPoint": 958, "density": 4.819, "groupBlock": "nonmetal", "yearDiscovered": 1817, "block": "p", "cpkHexColor": "FFA100", "period": 4, "group": 16}, {"atomicNumber": 35, "symbol": "Br", "name": "Bromine", "atomicMass": "79.904(1)", "electronicConfiguration": "[Ar] 3d10 4s2 4p5", "electronegativity": 2.96, "atomicRadius": 114, "ionRadius": "196 (-1)", "vanDerWaalsRadius": 185, "ionizationEnergy": 1140, "electronAffinity": -325, "oxidationStates": "-1, 1, 3, 4, 5, 7", "standardState": "liquid", "bondingType": "covalent network", "meltingPoint": 266, "boilingPoint": 332, "density": 3.12, "groupBlock": "halogen", "yearDiscovered": 1826, "block": "p", "cpkHexColor": "A62929", "period": 4, "group": 17}, {"atomicNumber": 36, "symbol": "Kr", "name": "Krypton", "atomicMass": "83.798(2)", "electronicConfiguration": "[Ar] 3d10 4s2 4p6", "electronegativity": "unknown", "atomicRadius": 110, "ionRadius": "unknown", "vanDerWaalsRadius": 202, "ionizationEnergy": 1351, "electronAffinity": 0, "oxidationStates": 2, "standardState": "gas", "bondingType": "atomic", "meltingPoint": 116, "boilingPoint": 120, "density": 0.00375, "groupBlock": "noble gas", "yearDiscovered": 1898, "block": "p", "cpkHexColor": "5CB8D1", "period": 4, "group": 18}, {"atomicNumber": 37, "symbol": "Rb", "name": "Rubidium", "atomicMass": "85.4678(3)", "electronicConfiguration": "[Kr] 5s1", "electronegativity": 0.82, "atomicRadius": 211, "ionRadius": "152 (+1)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 403, "electronAffinity": -47, "oxidationStates": 1, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 312, "boilingPoint": 961, "density": 1.532, "groupBlock": "alkali metal", "yearDiscovered": 1861, "block": "s", "cpkHexColor": "702EB0", "period": 5, "group": 1}, {"atomicNumber": 38, "symbol": "Sr", "name": "Strontium", "atomicMass": "87.62(1)", "electronicConfiguration": "[Kr] 5s2", "electronegativity": 0.95, "atomicRadius": 192, "ionRadius": "118 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 550, "electronAffinity": -5, "oxidationStates": 2, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1050, "boilingPoint": 1655, "density": 2.63, "groupBlock": "alkaline earth metal", "yearDiscovered": 1790, "block": "s", "cpkHexColor": "00FF00", "period": 5, "group": 2}, {"atomicNumber": 39, "symbol": "Y", "name": "Yttrium", "atomicMass": "88.90585(2)", "electronicConfiguration": "[Kr] 4d1 5s2", "electronegativity": 1.22, "atomicRadius": 162, "ionRadius": "90 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 600, "electronAffinity": -30, "oxidationStates": "1, 2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1799, "boilingPoint": 3618, "density": 4.472, "groupBlock": "transition metal", "yearDiscovered": 1794, "block": "d", "cpkHexColor": "94FFFF", "period": 5, "group": 3}, {"atomicNumber": 40, "symbol": "Zr", "name": "Zirconium", "atomicMass": "91.224(2)", "electronicConfiguration": "[Kr] 4d2 5s2", "electronegativity": 1.33, "atomicRadius": 148, "ionRadius": "72 (+4)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 640, "electronAffinity": -41, "oxidationStates": "1, 2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2128, "boilingPoint": 4682, "density": 6.511, "groupBlock": "transition metal", "yearDiscovered": 1789, "block": "d", "cpkHexColor": "94E0E0", "period": 5, "group": 4}, {"atomicNumber": 41, "symbol": "Nb", "name": "Niobium", "atomicMass": "92.90638(2)", "electronicConfiguration": "[Kr] 4d4 5s1", "electronegativity": 1.6, "atomicRadius": 137, "ionRadius": "72 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 652, "electronAffinity": -86, "oxidationStates": "-1, 2, 3, 4, 5", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2750, "boilingPoint": 5017, "density": 8.57, "groupBlock": "transition metal", "yearDiscovered": 1801, "block": "d", "cpkHexColor": "73C2C9", "period": 5, "group": 5}, {"atomicNumber": 42, "symbol": "Mo", "name": "Molybdenum", "atomicMass": "95.96(2)", "electronicConfiguration": "[Kr] 4d5 5s1", "electronegativity": 2.16, "atomicRadius": 145, "ionRadius": "69 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 684, "electronAffinity": -72, "oxidationStates": "-2, -1, 1, 2, 3, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2896, "boilingPoint": 4912, "density": 10.28, "groupBlock": "transition metal", "yearDiscovered": 1778, "block": "d", "cpkHexColor": "54B5B5", "period": 5, "group": 6}, {"atomicNumber": 43, "symbol": "Tc", "name": "Technetium", "atomicMass": [98], "electronicConfiguration": "[Kr] 4d5 5s2", "electronegativity": 1.9, "atomicRadius": 156, "ionRadius": "64.5 (+4)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 702, "electronAffinity": -53, "oxidationStates": "-3, -1, 1, 2, 3, 4, 5, 6, 7", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2430, "boilingPoint": 4538, "density": 11.5, "groupBlock": "transition metal", "yearDiscovered": 1937, "block": "d", "cpkHexColor": "3B9E9E", "period": 5, "group": 7}, {"atomicNumber": 44, "symbol": "Ru", "name": "Ruthenium", "atomicMass": "101.07(2)", "electronicConfiguration": "[Kr] 4d7 5s1", "electronegativity": 2.2, "atomicRadius": 126, "ionRadius": "68 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 710, "electronAffinity": -101, "oxidationStates": "-2, 1, 2, 3, 4, 5, 6, 7, 8", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2607, "boilingPoint": 4423, "density": 12.37, "groupBlock": "transition metal", "yearDiscovered": 1827, "block": "d", "cpkHexColor": "248F8F", "period": 5, "group": 8}, {"atomicNumber": 45, "symbol": "Rh", "name": "Rhodium", "atomicMass": "102.90550(2)", "electronicConfiguration": "[Kr] 4d8 5s1", "electronegativity": 2.28, "atomicRadius": 135, "ionRadius": "66.5 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 720, "electronAffinity": -110, "oxidationStates": "-1, 1, 2, 3, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2237, "boilingPoint": 3968, "density": 12.45, "groupBlock": "transition metal", "yearDiscovered": 1803, "block": "d", "cpkHexColor": "0A7D8C", "period": 5, "group": 9}, {"atomicNumber": 46, "symbol": "Pd", "name": "Palladium", "atomicMass": "106.42(1)", "electronicConfiguration": "[Kr] 4d10", "electronegativity": 2.2, "atomicRadius": 131, "ionRadius": "59 (+1)", "vanDerWaalsRadius": 163, "ionizationEnergy": 804, "electronAffinity": -54, "oxidationStates": "2, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1828, "boilingPoint": 3236, "density": 12.023, "groupBlock": "transition metal", "yearDiscovered": 1803, "block": "d", "cpkHexColor": "6985", "period": 5, "group": 10}, {"atomicNumber": 47, "symbol": "Ag", "name": "Silver", "atomicMass": "107.8682(2)", "electronicConfiguration": "[Kr] 4d10 5s1", "electronegativity": 1.93, "atomicRadius": 153, "ionRadius": "115 (+1)", "vanDerWaalsRadius": 172, "ionizationEnergy": 731, "electronAffinity": -126, "oxidationStates": "1, 2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1235, "boilingPoint": 2435, "density": 10.49, "groupBlock": "transition metal", "yearDiscovered": "Ancient", "block": "d", "cpkHexColor": "C0C0C0", "period": 5, "group": 11}, {"atomicNumber": 48, "symbol": "Cd", "name": "Cadmium", "atomicMass": "112.411(8)", "electronicConfiguration": "[Kr] 4d10 5s2", "electronegativity": 1.69, "atomicRadius": 148, "ionRadius": "95 (+2)", "vanDerWaalsRadius": 158, "ionizationEnergy": 868, "electronAffinity": 0, "oxidationStates": 2, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 594, "boilingPoint": 1040, "density": 8.65, "groupBlock": "transition metal", "yearDiscovered": 1817, "block": "d", "cpkHexColor": "FFD98F", "period": 5, "group": 12}, {"atomicNumber": 49, "symbol": "In", "name": "Indium", "atomicMass": "114.818(3)", "electronicConfiguration": "[Kr] 4d10 5s2 5p1", "electronegativity": 1.78, "atomicRadius": 144, "ionRadius": "80 (+3)", "vanDerWaalsRadius": 193, "ionizationEnergy": 558, "electronAffinity": -29, "oxidationStates": "1, 2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 430, "boilingPoint": 2345, "density": 7.31, "groupBlock": "metal", "yearDiscovered": 1863, "block": "p", "cpkHexColor": "A67573", "period": 5, "group": 13}, {"atomicNumber": 50, "symbol": "Sn", "name": "Tin", "atomicMass": "118.710(7)", "electronicConfiguration": "[Kr] 4d10 5s2 5p2", "electronegativity": 1.96, "atomicRadius": 141, "ionRadius": "112 (+2)", "vanDerWaalsRadius": 217, "ionizationEnergy": 709, "electronAffinity": -107, "oxidationStates": "-4, 2, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 505, "boilingPoint": 2875, "density": 7.31, "groupBlock": "metal", "yearDiscovered": "Ancient", "block": "p", "cpkHexColor": "668080", "period": 5, "group": 14}, {"atomicNumber": 51, "symbol": "Sb", "name": "Antimony", "atomicMass": "121.760(1)", "electronicConfiguration": "[Kr] 4d10 5s2 5p3", "electronegativity": 2.05, "atomicRadius": 138, "ionRadius": "76 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 834, "electronAffinity": -103, "oxidationStates": "-3, 3, 5", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 904, "boilingPoint": 1860, "density": 6.697, "groupBlock": "metalloid", "yearDiscovered": "Ancient", "block": "p", "cpkHexColor": "9E63B5", "period": 5, "group": 15}, {"atomicNumber": 52, "symbol": "Te", "name": "Tellurium", "atomicMass": "127.60(3)", "electronicConfiguration": "[Kr] 4d10 5s2 5p4", "electronegativity": 2.1, "atomicRadius": 135, "ionRadius": "221 (-2)", "vanDerWaalsRadius": 206, "ionizationEnergy": 869, "electronAffinity": -190, "oxidationStates": "-2, 2, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 723, "boilingPoint": 1261, "density": 6.24, "groupBlock": "metalloid", "yearDiscovered": 1782, "block": "p", "cpkHexColor": "D47A00", "period": 5, "group": 16}, {"atomicNumber": 53, "symbol": "I", "name": "Iodine", "atomicMass": "126.90447(3)", "electronicConfiguration": "[Kr] 4d10 5s2 5p5", "electronegativity": 2.66, "atomicRadius": 133, "ionRadius": "220 (-1)", "vanDerWaalsRadius": 198, "ionizationEnergy": 1008, "electronAffinity": -295, "oxidationStates": "-1, 1, 3, 5, 7", "standardState": "solid", "bondingType": "covalent network", "meltingPoint": 387, "boilingPoint": 457, "density": 4.94, "groupBlock": "halogen", "yearDiscovered": 1811, "block": "p", "cpkHexColor": "940094", "period": 5, "group": 17}, {"atomicNumber": 54, "symbol": "Xe", "name": "Xenon", "atomicMass": "131.293(6)", "electronicConfiguration": "[Kr] 4d10 5s2 5p6", "electronegativity": "unknown", "atomicRadius": 130, "ionRadius": "48 (+8)", "vanDerWaalsRadius": 216, "ionizationEnergy": 1170, "electronAffinity": 0, "oxidationStates": "2, 4, 6, 8", "standardState": "gas", "bondingType": "atomic", "meltingPoint": 161, "boilingPoint": 165, "density": 0.0059, "groupBlock": "noble gas", "yearDiscovered": 1898, "block": "p", "cpkHexColor": "429EB0", "period": 5, "group": 18}, {"atomicNumber": 55, "symbol": "Cs", "name": "Cesium", "atomicMass": "132.9054519(2)", "electronicConfiguration": "[Xe] 6s1", "electronegativity": 0.79, "atomicRadius": 225, "ionRadius": "167 (+1)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 376, "electronAffinity": -46, "oxidationStates": 1, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 302, "boilingPoint": 944, "density": 1.879, "groupBlock": "alkali metal", "yearDiscovered": 1860, "block": "s", "cpkHexColor": "57178F", "period": 6, "group": 1}, {"atomicNumber": 56, "symbol": "Ba", "name": "Barium", "atomicMass": "137.327(7)", "electronicConfiguration": "[Xe] 6s2", "electronegativity": 0.89, "atomicRadius": 198, "ionRadius": "135 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 503, "electronAffinity": -14, "oxidationStates": 2, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1000, "boilingPoint": 2143, "density": 3.51, "groupBlock": "alkaline earth metal", "yearDiscovered": 1808, "block": "s", "cpkHexColor": "00C900", "period": 6, "group": 2}, {"atomicNumber": 57, "symbol": "La", "name": "Lanthanum", "atomicMass": "138.90547(7)", "electronicConfiguration": "[Xe] 5d1 6s2", "electronegativity": 1.1, "atomicRadius": 169, "ionRadius": "103.2 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 538, "electronAffinity": -48, "oxidationStates": "2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1193, "boilingPoint": 3737, "density": 6.146, "groupBlock": "lanthanoid", "yearDiscovered": 1839, "block": "f", "cpkHexColor": "70D4FF", "period": 6, "group": 3}, {"atomicNumber": 58, "symbol": "Ce", "name": "Cerium", "atomicMass": "140.116(1)", "electronicConfiguration": "[Xe] 4f1 5d1 6s2", "electronegativity": 1.12, "atomicRadius": "unknown", "ionRadius": "102 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 534, "electronAffinity": -50, "oxidationStates": "2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1071, "boilingPoint": 3633, "density": 6.689, "groupBlock": "lanthanoid", "yearDiscovered": 1803, "block": "f", "cpkHexColor": "FFFFC7", "period": 6, "group": 3}, {"atomicNumber": 59, "symbol": "Pr", "name": "Praseodymium", "atomicMass": "140.90765(2)", "electronicConfiguration": "[Xe] 4f3 6s2", "electronegativity": 1.13, "atomicRadius": "unknown", "ionRadius": "99 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 527, "electronAffinity": -50, "oxidationStates": "2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1204, "boilingPoint": 3563, "density": 6.64, "groupBlock": "lanthanoid", "yearDiscovered": 1885, "block": "f", "cpkHexColor": "D9FFC7", "period": 6, "group": 3}, {"atomicNumber": 60, "symbol": "Nd", "name": "Neodymium", "atomicMass": "144.242(3)", "electronicConfiguration": "[Xe] 4f4 6s2", "electronegativity": 1.14, "atomicRadius": "unknown", "ionRadius": "129 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 533, "electronAffinity": -50, "oxidationStates": "2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1294, "boilingPoint": 3373, "density": 7.01, "groupBlock": "lanthanoid", "yearDiscovered": 1885, "block": "f", "cpkHexColor": "C7FFC7", "period": 6, "group": 3}, {"atomicNumber": 61, "symbol": "Pm", "name": "Promethium", "atomicMass": [145], "electronicConfiguration": "[Xe] 4f5 6s2", "electronegativity": 1.13, "atomicRadius": "unknown", "ionRadius": "97 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 540, "electronAffinity": -50, "oxidationStates": 3, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1373, "boilingPoint": 3273, "density": 7.264, "groupBlock": "lanthanoid", "yearDiscovered": 1947, "block": "f", "cpkHexColor": "A3FFC7", "period": 6, "group": 3}, {"atomicNumber": 62, "symbol": "Sm", "name": "Samarium", "atomicMass": "150.36(2)", "electronicConfiguration": "[Xe] 4f6 6s2", "electronegativity": 1.17, "atomicRadius": "unknown", "ionRadius": "122 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 545, "electronAffinity": -50, "oxidationStates": "2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1345, "boilingPoint": 2076, "density": 7.353, "groupBlock": "lanthanoid", "yearDiscovered": 1853, "block": "f", "cpkHexColor": "8FFFC7", "period": 6, "group": 3}, {"atomicNumber": 63, "symbol": "Eu", "name": "Europium", "atomicMass": "151.964(1)", "electronicConfiguration": "[Xe] 4f7 6s2", "electronegativity": 1.2, "atomicRadius": "unknown", "ionRadius": "117 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 547, "electronAffinity": -50, "oxidationStates": "2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1095, "boilingPoint": 1800, "density": 5.244, "groupBlock": "lanthanoid", "yearDiscovered": 1901, "block": "f", "cpkHexColor": "61FFC7", "period": 6, "group": 3}, {"atomicNumber": 64, "symbol": "Gd", "name": "Gadolinium", "atomicMass": "157.25(3)", "electronicConfiguration": "[Xe] 4f7 5d1 6s2", "electronegativity": 1.2, "atomicRadius": "unknown", "ionRadius": "93.8 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 593, "electronAffinity": -50, "oxidationStates": "1, 2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1586, "boilingPoint": 3523, "density": 7.901, "groupBlock": "lanthanoid", "yearDiscovered": 1880, "block": "f", "cpkHexColor": "45FFC7", "period": 6, "group": 3}, {"atomicNumber": 65, "symbol": "Tb", "name": "Terbium", "atomicMass": "158.92535(2)", "electronicConfiguration": "[Xe] 4f9 6s2", "electronegativity": 1.2, "atomicRadius": "unknown", "ionRadius": "92.3 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 566, "electronAffinity": -50, "oxidationStates": "1, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1629, "boilingPoint": 3503, "density": 8.219, "groupBlock": "lanthanoid", "yearDiscovered": 1843, "block": "f", "cpkHexColor": "30FFC7", "period": 6, "group": 3}, {"atomicNumber": 66, "symbol": "Dy", "name": "Dysprosium", "atomicMass": "162.500(1)", "electronicConfiguration": "[Xe] 4f10 6s2", "electronegativity": 1.22, "atomicRadius": "unknown", "ionRadius": "107 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 573, "electronAffinity": -50, "oxidationStates": "2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1685, "boilingPoint": 2840, "density": 8.551, "groupBlock": "lanthanoid", "yearDiscovered": 1886, "block": "f", "cpkHexColor": "1FFFC7", "period": 6, "group": 3}, {"atomicNumber": 67, "symbol": "Ho", "name": "Holmium", "atomicMass": "164.93032(2)", "electronicConfiguration": "[Xe] 4f11 6s2", "electronegativity": 1.23, "atomicRadius": "unknown", "ionRadius": "90.1 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 581, "electronAffinity": -50, "oxidationStates": 3, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1747, "boilingPoint": 2973, "density": 8.795, "groupBlock": "lanthanoid", "yearDiscovered": 1878, "block": "f", "cpkHexColor": "00FF9C", "period": 6, "group": 3}, {"atomicNumber": 68, "symbol": "Er", "name": "Erbium", "atomicMass": "167.259(3)", "electronicConfiguration": "[Xe] 4f12 6s2", "electronegativity": 1.24, "atomicRadius": "unknown", "ionRadius": "89 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 589, "electronAffinity": -50, "oxidationStates": 3, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1770, "boilingPoint": 3141, "density": 9.066, "groupBlock": "lanthanoid", "yearDiscovered": 1842, "block": "f", "cpkHexColor": "0", "period": 6, "group": 3}, {"atomicNumber": 69, "symbol": "Tm", "name": "Thulium", "atomicMass": "168.93421(2)", "electronicConfiguration": "[Xe] 4f13 6s2", "electronegativity": 1.25, "atomicRadius": "unknown", "ionRadius": "103 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 597, "electronAffinity": -50, "oxidationStates": "2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1818, "boilingPoint": 2223, "density": 9.321, "groupBlock": "lanthanoid", "yearDiscovered": 1879, "block": "f", "cpkHexColor": "00D452", "period": 6, "group": 3}, {"atomicNumber": 70, "symbol": "Yb", "name": "Ytterbium", "atomicMass": "173.054(5)", "electronicConfiguration": "[Xe] 4f14 6s2", "electronegativity": 1.1, "atomicRadius": "unknown", "ionRadius": "102 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 603, "electronAffinity": -50, "oxidationStates": "2, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1092, "boilingPoint": 1469, "density": 6.57, "groupBlock": "lanthanoid", "yearDiscovered": 1878, "block": "f", "cpkHexColor": "00BF38", "period": 6, "group": 3}, {"atomicNumber": 71, "symbol": "Lu", "name": "Lutetium", "atomicMass": "174.9668(1)", "electronicConfiguration": "[Xe] 4f14 5d1 6s2", "electronegativity": 1.27, "atomicRadius": 160, "ionRadius": "86.1 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 524, "electronAffinity": -50, "oxidationStates": 3, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1936, "boilingPoint": 3675, "density": 9.841, "groupBlock": "lanthanoid", "yearDiscovered": 1907, "block": "d", "cpkHexColor": "00AB24", "period": 6, "group": 3}, {"atomicNumber": 72, "symbol": "Hf", "name": "Hafnium", "atomicMass": "178.49(2)", "electronicConfiguration": "[Xe] 4f14 5d2 6s2", "electronegativity": 1.3, "atomicRadius": 150, "ionRadius": "71 (+4)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 659, "electronAffinity": 0, "oxidationStates": "2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2506, "boilingPoint": 4876, "density": 13.31, "groupBlock": "transition metal", "yearDiscovered": 1923, "block": "d", "cpkHexColor": "4DC2FF", "period": 6, "group": 4}, {"atomicNumber": 73, "symbol": "Ta", "name": "Tantalum", "atomicMass": "180.94788(2)", "electronicConfiguration": "[Xe] 4f14 5d3 6s2", "electronegativity": 1.5, "atomicRadius": 138, "ionRadius": "72 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 761, "electronAffinity": -31, "oxidationStates": "-1, 2, 3, 4, 5", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 3290, "boilingPoint": 5731, "density": 16.65, "groupBlock": "transition metal", "yearDiscovered": 1802, "block": "d", "cpkHexColor": "4DA6FF", "period": 6, "group": 5}, {"atomicNumber": 74, "symbol": "W", "name": "Tungsten", "atomicMass": "183.84(1)", "electronicConfiguration": "[Xe] 4f14 5d4 6s2", "electronegativity": 2.36, "atomicRadius": 146, "ionRadius": "66 (+4)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 770, "electronAffinity": -79, "oxidationStates": "-2, -1, 1, 2, 3, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 3695, "boilingPoint": 5828, "density": 19.25, "groupBlock": "transition metal", "yearDiscovered": 1783, "block": "d", "cpkHexColor": "2194D6", "period": 6, "group": 6}, {"atomicNumber": 75, "symbol": "Re", "name": "Rhenium", "atomicMass": "186.207(1)", "electronicConfiguration": "[Xe] 4f14 5d5 6s2", "electronegativity": 1.9, "atomicRadius": 159, "ionRadius": "63 (+4)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 760, "electronAffinity": -15, "oxidationStates": "-3, -1, 1, 2, 3, 4, 5, 6, 7", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 3459, "boilingPoint": 5869, "density": 21.02, "groupBlock": "transition metal", "yearDiscovered": 1925, "block": "d", "cpkHexColor": "267DAB", "period": 6, "group": 7}, {"atomicNumber": 76, "symbol": "Os", "name": "Osmium", "atomicMass": "190.23(3)", "electronicConfiguration": "[Xe] 4f14 5d6 6s2", "electronegativity": 2.2, "atomicRadius": 128, "ionRadius": "63 (+4)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 840, "electronAffinity": -106, "oxidationStates": "-2, -1, 1, 2, 3, 4, 5, 6, 7, 8", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 3306, "boilingPoint": 5285, "density": 22.61, "groupBlock": "transition metal", "yearDiscovered": 1803, "block": "d", "cpkHexColor": "266696", "period": 6, "group": 8}, {"atomicNumber": 77, "symbol": "Ir", "name": "Iridium", "atomicMass": "192.217(3)", "electronicConfiguration": "[Xe] 4f14 5d7 6s2", "electronegativity": 2.2, "atomicRadius": 137, "ionRadius": "68 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 880, "electronAffinity": -151, "oxidationStates": "-3, -1, 1, 2, 3, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2739, "boilingPoint": 4701, "density": 22.65, "groupBlock": "transition metal", "yearDiscovered": 1803, "block": "d", "cpkHexColor": "175487", "period": 6, "group": 9}, {"atomicNumber": 78, "symbol": "Pt", "name": "Platinum", "atomicMass": "195.084(9)", "electronicConfiguration": "[Xe] 4f14 5d9 6s1", "electronegativity": 2.28, "atomicRadius": 128, "ionRadius": "86 (+2)", "vanDerWaalsRadius": 175, "ionizationEnergy": 870, "electronAffinity": -205, "oxidationStates": "2, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2041, "boilingPoint": 4098, "density": 21.09, "groupBlock": "transition metal", "yearDiscovered": "Ancient", "block": "d", "cpkHexColor": "D0D0E0", "period": 6, "group": 10}, {"atomicNumber": 79, "symbol": "Au", "name": "Gold", "atomicMass": "196.966569(4)", "electronicConfiguration": "[Xe] 4f14 5d10 6s1", "electronegativity": 2.54, "atomicRadius": 144, "ionRadius": "137 (+1)", "vanDerWaalsRadius": 166, "ionizationEnergy": 890, "electronAffinity": -223, "oxidationStates": "-1, 1, 2, 3, 5", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1337, "boilingPoint": 3129, "density": 19.3, "groupBlock": "transition metal", "yearDiscovered": "Ancient", "block": "d", "cpkHexColor": "FFD123", "period": 6, "group": 11}, {"atomicNumber": 80, "symbol": "Hg", "name": "Mercury", "atomicMass": "200.59(2)", "electronicConfiguration": "[Xe] 4f14 5d10 6s2", "electronegativity": 2, "atomicRadius": 149, "ionRadius": "119 (+1)", "vanDerWaalsRadius": 155, "ionizationEnergy": 1007, "electronAffinity": 0, "oxidationStates": "1, 2, 4", "standardState": "liquid", "bondingType": "metallic", "meltingPoint": 234, "boilingPoint": 630, "density": 13.534, "groupBlock": "transition metal", "yearDiscovered": "Ancient", "block": "d", "cpkHexColor": "B8B8D0", "period": 6, "group": 12}, {"atomicNumber": 81, "symbol": "Tl", "name": "Thallium", "atomicMass": "204.3833(2)", "electronicConfiguration": "[Xe] 4f14 5d10 6s2 6p1", "electronegativity": 2.04, "atomicRadius": 148, "ionRadius": "150 (+1)", "vanDerWaalsRadius": 196, "ionizationEnergy": 589, "electronAffinity": -19, "oxidationStates": "1, 3", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 577, "boilingPoint": 1746, "density": 11.85, "groupBlock": "metal", "yearDiscovered": 1861, "block": "p", "cpkHexColor": "A6544D", "period": 6, "group": 13}, {"atomicNumber": 82, "symbol": "Pb", "name": "Lead", "atomicMass": "207.2(1)", "electronicConfiguration": "[Xe] 4f14 5d10 6s2 6p2", "electronegativity": 2.33, "atomicRadius": 147, "ionRadius": "119 (+2)", "vanDerWaalsRadius": 202, "ionizationEnergy": 716, "electronAffinity": -35, "oxidationStates": "-4, 2, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 601, "boilingPoint": 2022, "density": 11.34, "groupBlock": "metal", "yearDiscovered": "Ancient", "block": "p", "cpkHexColor": "575961", "period": 6, "group": 14}, {"atomicNumber": 83, "symbol": "Bi", "name": "Bismuth", "atomicMass": "208.98040(1)", "electronicConfiguration": "[Xe] 4f14 5d10 6s2 6p3", "electronegativity": 2.02, "atomicRadius": 146, "ionRadius": "103 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 703, "electronAffinity": -91, "oxidationStates": "-3, 3, 5", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 544, "boilingPoint": 1837, "density": 9.78, "groupBlock": "metal", "yearDiscovered": "Ancient", "block": "p", "cpkHexColor": "9E4FB5", "period": 6, "group": 15}, {"atomicNumber": 84, "symbol": "Po", "name": "Polonium", "atomicMass": [209], "electronicConfiguration": "[Xe] 4f14 5d10 6s2 6p4", "electronegativity": 2, "atomicRadius": "unknown", "ionRadius": "94 (+4)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 812, "electronAffinity": -183, "oxidationStates": "-2, 2, 4, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 527, "boilingPoint": 1235, "density": 9.196, "groupBlock": "metalloid", "yearDiscovered": 1898, "block": "p", "cpkHexColor": "AB5C00", "period": 6, "group": 16}, {"atomicNumber": 85, "symbol": "At", "name": "Astatine", "atomicMass": [210], "electronicConfiguration": "[Xe] 4f14 5d10 6s2 6p5", "electronegativity": 2.2, "atomicRadius": "unknown", "ionRadius": "62 (+7)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 920, "electronAffinity": -270, "oxidationStates": "-1, 1, 3, 5", "standardState": "solid", "bondingType": "covalent network", "meltingPoint": 575, "boilingPoint": "unknown", "density": "unknown", "groupBlock": "halogen", "yearDiscovered": 1940, "block": "p", "cpkHexColor": "754F45", "period": 6, "group": 17}, {"atomicNumber": 86, "symbol": "Rn", "name": "Radon", "atomicMass": [222], "electronicConfiguration": "[Xe] 4f14 5d10 6s2 6p6", "electronegativity": "unknown", "atomicRadius": 145, "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 1037, "electronAffinity": "unknown", "oxidationStates": 2, "standardState": "gas", "bondingType": "atomic", "meltingPoint": 202, "boilingPoint": 211, "density": 0.00973, "groupBlock": "noble gas", "yearDiscovered": 1900, "block": "p", "cpkHexColor": "428296", "period": 6, "group": 18}, {"atomicNumber": 87, "symbol": "Fr", "name": "Francium", "atomicMass": [223], "electronicConfiguration": "[Rn] 7s1", "electronegativity": 0.7, "atomicRadius": "unknown", "ionRadius": "180 (+1)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 380, "electronAffinity": "unknown", "oxidationStates": 1, "standardState": "solid", "bondingType": "metallic", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "alkali metal", "yearDiscovered": 1939, "block": "s", "cpkHexColor": "420066", "period": 7, "group": 1}, {"atomicNumber": 88, "symbol": "Ra", "name": "Radium", "atomicMass": [226], "electronicConfiguration": "[Rn] 7s2", "electronegativity": 0.9, "atomicRadius": "unknown", "ionRadius": "148 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 509, "electronAffinity": "unknown", "oxidationStates": 2, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 973, "boilingPoint": 2010, "density": 5, "groupBlock": "alkaline earth metal", "yearDiscovered": 1898, "block": "s", "cpkHexColor": "007D00", "period": 7, "group": 2}, {"atomicNumber": 89, "symbol": "Ac", "name": "Actinium", "atomicMass": [227], "electronicConfiguration": "[Rn] 6d1 7s2", "electronegativity": 1.1, "atomicRadius": "unknown", "ionRadius": "112 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 499, "electronAffinity": "unknown", "oxidationStates": 3, "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1323, "boilingPoint": 3473, "density": 10.07, "groupBlock": "actinoid", "yearDiscovered": 1899, "block": "f", "cpkHexColor": "70ABFA", "period": 7, "group": 3}, {"atomicNumber": 90, "symbol": "Th", "name": "Thorium", "atomicMass": "232.03806(2)", "electronicConfiguration": "[Rn] 6d2 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "94 (+4)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 587, "electronAffinity": "unknown", "oxidationStates": "2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 2023, "boilingPoint": 5093, "density": 11.724, "groupBlock": "actinoid", "yearDiscovered": 1828, "block": "f", "cpkHexColor": "00BAFF", "period": 7, "group": 3}, {"atomicNumber": 91, "symbol": "Pa", "name": "Protactinium", "atomicMass": "231.03588(2)", "electronicConfiguration": "[Rn] 5f2 6d1 7s2", "electronegativity": 1.5, "atomicRadius": "unknown", "ionRadius": "104 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 568, "electronAffinity": "unknown", "oxidationStates": "3, 4, 5", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1845, "boilingPoint": 4273, "density": 15.37, "groupBlock": "actinoid", "yearDiscovered": 1913, "block": "f", "cpkHexColor": "00A1FF", "period": 7, "group": 3}, {"atomicNumber": 92, "symbol": "U", "name": "Uranium", "atomicMass": "238.02891(3)", "electronicConfiguration": "[Rn] 5f3 6d1 7s2", "electronegativity": 1.38, "atomicRadius": "unknown", "ionRadius": "102.5 (+3)", "vanDerWaalsRadius": 186, "ionizationEnergy": 598, "electronAffinity": "unknown", "oxidationStates": "3, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1408, "boilingPoint": 4200, "density": 19.05, "groupBlock": "actinoid", "yearDiscovered": 1789, "block": "f", "cpkHexColor": "008FFF", "period": 7, "group": 3}, {"atomicNumber": 93, "symbol": "Np", "name": "Neptunium", "atomicMass": [237], "electronicConfiguration": "[Rn] 5f4 6d1 7s2", "electronegativity": 1.36, "atomicRadius": "unknown", "ionRadius": "110 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 605, "electronAffinity": "unknown", "oxidationStates": "3, 4, 5, 6, 7", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 917, "boilingPoint": 4273, "density": 20.45, "groupBlock": "actinoid", "yearDiscovered": 1940, "block": "f", "cpkHexColor": "0080FF", "period": 7, "group": 3}, {"atomicNumber": 94, "symbol": "Pu", "name": "Plutonium", "atomicMass": [244], "electronicConfiguration": "[Rn] 5f6 7s2", "electronegativity": 1.28, "atomicRadius": "unknown", "ionRadius": "100 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 585, "electronAffinity": "unknown", "oxidationStates": "3, 4, 5, 6, 7", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 913, "boilingPoint": 3503, "density": 19.816, "groupBlock": "actinoid", "yearDiscovered": 1940, "block": "f", "cpkHexColor": "006BFF", "period": 7, "group": 3}, {"atomicNumber": 95, "symbol": "Am", "name": "Americium", "atomicMass": [243], "electronicConfiguration": "[Rn] 5f7 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "126 (+2)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 578, "electronAffinity": "unknown", "oxidationStates": "2, 3, 4, 5, 6", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1449, "boilingPoint": 2284, "density": "unknown", "groupBlock": "actinoid", "yearDiscovered": 1944, "block": "f", "cpkHexColor": "545CF2", "period": 7, "group": 3}, {"atomicNumber": 96, "symbol": "Cm", "name": "Curium", "atomicMass": [247], "electronicConfiguration": "[Rn] 5f7 6d1 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "97 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 581, "electronAffinity": "unknown", "oxidationStates": "3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1618, "boilingPoint": 3383, "density": 13.51, "groupBlock": "actinoid", "yearDiscovered": 1944, "block": "f", "cpkHexColor": "785CE3", "period": 7, "group": 3}, {"atomicNumber": 97, "symbol": "Bk", "name": "Berkelium", "atomicMass": [247], "electronicConfiguration": "[Rn] 5f9 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "96 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 601, "electronAffinity": "unknown", "oxidationStates": "3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1323, "boilingPoint": "unknown", "density": 14.78, "groupBlock": "actinoid", "yearDiscovered": 1949, "block": "f", "cpkHexColor": "8A4FE3", "period": 7, "group": 3}, {"atomicNumber": 98, "symbol": "Cf", "name": "Californium", "atomicMass": [251], "electronicConfiguration": "[Rn] 5f10 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "95 (+3)", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 608, "electronAffinity": "unknown", "oxidationStates": "2, 3, 4", "standardState": "solid", "bondingType": "metallic", "meltingPoint": 1173, "boilingPoint": "unknown", "density": 15.1, "groupBlock": "actinoid", "yearDiscovered": 1950, "block": "f", "cpkHexColor": "A136D4", "period": 7, "group": 3}, {"atomicNumber": 99, "symbol": "Es", "name": "Einsteinium", "atomicMass": [252], "electronicConfiguration": "[Rn] 5f11 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 619, "electronAffinity": "unknown", "oxidationStates": "2, 3", "standardState": "solid", "bondingType": "unknown", "meltingPoint": 1133, "boilingPoint": "unknown", "density": "unknown", "groupBlock": "actinoid", "yearDiscovered": 1952, "block": "f", "cpkHexColor": "B31FD4", "period": 7, "group": 3}, {"atomicNumber": 100, "symbol": "Fm", "name": "Fermium", "atomicMass": [257], "electronicConfiguration": "[Rn] 5f12 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 627, "electronAffinity": "unknown", "oxidationStates": "2, 3", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": 1800, "boilingPoint": "unknown", "density": "unknown", "groupBlock": "actinoid", "yearDiscovered": 1952, "block": "f", "cpkHexColor": "B31FBA", "period": 7, "group": 3}, {"atomicNumber": 101, "symbol": "Md", "name": "Mendelevium", "atomicMass": [258], "electronicConfiguration": "[Rn] 5f13 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 635, "electronAffinity": "unknown", "oxidationStates": "2, 3", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": 1100, "boilingPoint": "unknown", "density": "unknown", "groupBlock": "actinoid", "yearDiscovered": 1955, "block": "f", "cpkHexColor": "B30DA6", "period": 7, "group": 3}, {"atomicNumber": 102, "symbol": "No", "name": "Nobelium", "atomicMass": [259], "electronicConfiguration": "[Rn] 5f14 7s2", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": 642, "electronAffinity": "unknown", "oxidationStates": "2, 3", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": 1100, "boilingPoint": "unknown", "density": "unknown", "groupBlock": "actinoid", "yearDiscovered": 1957, "block": "f", "cpkHexColor": "BD0D87", "period": 7, "group": 3}, {"atomicNumber": 103, "symbol": "Lr", "name": "Lawrencium", "atomicMass": [262], "electronicConfiguration": "[Rn] 5f14 7s2 7p1", "electronegativity": 1.3, "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": 3, "standardState": "unknown", "bondingType": "unknown", "meltingPoint": 1900, "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1961, "block": "d", "cpkHexColor": "C70066", "period": 7, "group": 3}, {"atomicNumber": 104, "symbol": "Rf", "name": "Rutherfordium", "atomicMass": [267], "electronicConfiguration": "[Rn] 5f14 6d2 7s2", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": 4, "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1969, "block": "d", "cpkHexColor": "CC0059", "period": 7, "group": 4}, {"atomicNumber": 105, "symbol": "Db", "name": "Dubnium", "atomicMass": [268], "electronicConfiguration": "[Rn] 5f14 6d3 7s2", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1967, "block": "d", "cpkHexColor": "D1004F", "period": 7, "group": 5}, {"atomicNumber": 106, "symbol": "Sg", "name": "Seaborgium", "atomicMass": [271], "electronicConfiguration": "[Rn] 5f14 6d4 7s2", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1974, "block": "d", "cpkHexColor": "D90045", "period": 7, "group": 6}, {"atomicNumber": 107, "symbol": "Bh", "name": "Bohrium", "atomicMass": [272], "electronicConfiguration": "[Rn] 5f14 6d5 7s2", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1976, "block": "d", "cpkHexColor": "E00038", "period": 7, "group": 7}, {"atomicNumber": 108, "symbol": "Hs", "name": "Hassium", "atomicMass": [270], "electronicConfiguration": "[Rn] 5f14 6d6 7s2", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1984, "block": "d", "cpkHexColor": "E6002E", "period": 7, "group": 8}, {"atomicNumber": 109, "symbol": "Mt", "name": "Meitnerium", "atomicMass": [276], "electronicConfiguration": "[Rn] 5f14 6d7 7s2", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1982, "block": "d", "cpkHexColor": "EB0026", "period": 7, "group": 9}, {"atomicNumber": 110, "symbol": "Ds", "name": "Darmstadtium", "atomicMass": [281], "electronicConfiguration": "[Rn] 5f14 6d9 7s1", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1994, "block": "d", "cpkHexColor": "unknown", "period": 7, "group": 10}, {"atomicNumber": 111, "symbol": "Rg", "name": "Roentgenium", "atomicMass": [280], "electronicConfiguration": "[Rn] 5f14 6d10 7s1", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1994, "block": "d", "cpkHexColor": "unknown", "period": 7, "group": 11}, {"atomicNumber": 112, "symbol": "Cn", "name": "Copernicium", "atomicMass": [285], "electronicConfiguration": "[Rn] 5f14 6d10 7s2", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "transition metal", "yearDiscovered": 1996, "block": "d", "cpkHexColor": "unknown", "period": 7, "group": 12}, {"atomicNumber": 113, "symbol": "Nh", "name": "Nihonium", "atomicMass": [284], "electronicConfiguration": "[Rn] 5f14 6d10 7s2 7p1", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "post-transition metal", "yearDiscovered": 2003, "block": "p", "cpkHexColor": "unknown", "period": 7, "group": 13}, {"atomicNumber": 114, "symbol": "Fl", "name": "Flerovium", "atomicMass": [289], "electronicConfiguration": "[Rn] 5f14 6d10 7s2 7p2", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "post-transition metal", "yearDiscovered": 1998, "block": "p", "cpkHexColor": "unknown", "period": 7, "group": 14}, {"atomicNumber": 115, "symbol": "Mc", "name": "Moscovium", "atomicMass": [288], "electronicConfiguration": "[Rn] 5f14 6d10 7s2 7p3", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "post-transition metal", "yearDiscovered": 2003, "block": "p", "cpkHexColor": "unknown", "period": 7, "group": 15}, {"atomicNumber": 116, "symbol": "Lv", "name": "Livermorium", "atomicMass": [293], "electronicConfiguration": "[Rn] 5f14 6d10 7s2 7p4", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "post-transition metal", "yearDiscovered": 2000, "block": "p", "cpkHexColor": "unknown", "period": 7, "group": 16}, {"atomicNumber": 117, "symbol": "Ts", "name": "Tennessine", "atomicMass": [294], "electronicConfiguration": "[Rn] 5f14 6d10 7s2 7p5", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "post-transition metal", "yearDiscovered": 2010, "block": "p", "cpkHexColor": "unknown", "period": 7, "group": 17}, {"atomicNumber": 118, "symbol": "Og", "name": "Oganesson", "atomicMass": [294], "electronicConfiguration": "[Rn] 5f14 6d10 7s2 7p6", "electronegativity": "unknown", "atomicRadius": "unknown", "ionRadius": "unknown", "vanDerWaalsRadius": "unknown", "ionizationEnergy": "unknown", "electronAffinity": "unknown", "oxidationStates": "unknown", "standardState": "unknown", "bondingType": "unknown", "meltingPoint": "unknown", "boilingPoint": "unknown", "density": "unknown", "groupBlock": "noble gas", "yearDiscovered": 2002, "block": "p", "cpkHexColor": "unknown", "period": 7, "group": 18}]