periodicTable top-level constant
Top level variable exported by this package.
Implementation
const periodicTable = const [
ChemicalElement(
name: 'Hydrogen',
symbol: 'H',
category: 'diatomic nonmetal',
stpPhase: MatterPhase.gas,
appearance: 'colorless gas',
number: 1,
period: 1,
row: 1,
column: 1,
shells: [1],
atomicMass: 1.008,
molecularDensity: 0.08988,
heatCapacity: 28.836,
meltingPoint: 13.99,
boilingPoint: 20.271,
),
ChemicalElement(
name: 'Helium',
symbol: 'He',
category: 'noble gas',
stpPhase: MatterPhase.gas,
appearance:
'colorless gas, exhibiting a red-orange glow when placed in a high-voltage electric field',
number: 2,
period: 1,
row: 1,
column: 18,
shells: [2],
atomicMass: 4.0026022,
molecularDensity: 0.1786,
meltingPoint: 0.95,
boilingPoint: 4.222,
),
ChemicalElement(
name: 'Lithium',
symbol: 'Li',
category: 'alkali metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery-white',
number: 3,
period: 2,
row: 2,
column: 1,
shells: [2, 1],
atomicMass: 6.94,
molecularDensity: 0.534,
heatCapacity: 24.86,
meltingPoint: 453.65,
boilingPoint: 1603,
),
ChemicalElement(
name: 'Beryllium',
symbol: 'Be',
category: 'alkaline earth metal',
stpPhase: MatterPhase.solid,
appearance: 'white-gray metallic',
number: 4,
period: 2,
row: 2,
column: 2,
shells: [2, 2],
atomicMass: 9.01218315,
molecularDensity: 1.85,
heatCapacity: 16.443,
meltingPoint: 1560,
boilingPoint: 2742,
),
ChemicalElement(
name: 'Boron',
symbol: 'B',
category: 'metalloid',
stpPhase: MatterPhase.solid,
appearance: 'black-brown',
number: 5,
period: 2,
row: 2,
column: 13,
shells: [2, 3],
atomicMass: 10.81,
molecularDensity: 2.08,
heatCapacity: 11.087,
meltingPoint: 2349,
boilingPoint: 4200,
),
ChemicalElement(
name: 'Carbon',
symbol: 'C',
category: 'polyatomic nonmetal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 6,
period: 2,
row: 2,
column: 14,
shells: [2, 4],
atomicMass: 12.011,
molecularDensity: 1.821,
heatCapacity: 8.517,
),
ChemicalElement(
name: 'Nitrogen',
symbol: 'N',
category: 'diatomic nonmetal',
stpPhase: MatterPhase.gas,
appearance: 'colorless gas, liquid or solid',
number: 7,
period: 2,
row: 2,
column: 15,
shells: [2, 5],
atomicMass: 14.007,
molecularDensity: 1.251,
meltingPoint: 63.15,
boilingPoint: 77.355,
),
ChemicalElement(
name: 'Oxygen',
symbol: 'O',
category: 'diatomic nonmetal',
stpPhase: MatterPhase.gas,
appearance: '',
number: 8,
period: 2,
row: 2,
column: 16,
shells: [2, 6],
atomicMass: 15.999,
molecularDensity: 1.429,
meltingPoint: 54.36,
boilingPoint: 90.188,
),
ChemicalElement(
name: 'Fluorine',
symbol: 'F',
category: 'diatomic nonmetal',
stpPhase: MatterPhase.gas,
appearance: '',
number: 9,
period: 2,
row: 2,
column: 17,
shells: [2, 7],
atomicMass: 18.9984031636,
molecularDensity: 1.696,
meltingPoint: 53.48,
boilingPoint: 85.03,
),
ChemicalElement(
name: 'Neon',
symbol: 'Ne',
category: 'noble gas',
stpPhase: MatterPhase.gas,
appearance:
'colorless gas exhibiting an orange-red glow when placed in a high voltage electric field',
number: 10,
period: 2,
row: 2,
column: 18,
shells: [2, 8],
atomicMass: 20.17976,
molecularDensity: 0.9002,
meltingPoint: 24.56,
boilingPoint: 27.104,
),
ChemicalElement(
name: 'Sodium',
symbol: 'Na',
category: 'alkali metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white metallic',
number: 11,
period: 3,
row: 3,
column: 1,
shells: [2, 8, 1],
atomicMass: 22.989769282,
molecularDensity: 0.968,
heatCapacity: 28.23,
meltingPoint: 370.944,
boilingPoint: 1156.09,
),
ChemicalElement(
name: 'Magnesium',
symbol: 'Mg',
category: 'alkaline earth metal',
stpPhase: MatterPhase.solid,
appearance: 'shiny grey solid',
number: 12,
period: 3,
row: 3,
column: 2,
shells: [2, 8, 2],
atomicMass: 24.305,
molecularDensity: 1.738,
heatCapacity: 24.869,
meltingPoint: 923,
boilingPoint: 1363,
),
ChemicalElement(
name: 'Aluminium',
symbol: 'Al',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery gray metallic',
number: 13,
period: 3,
row: 3,
column: 13,
shells: [2, 8, 3],
atomicMass: 26.98153857,
molecularDensity: 2.7,
heatCapacity: 24.2,
meltingPoint: 933.47,
boilingPoint: 2743,
),
ChemicalElement(
name: 'Silicon',
symbol: 'Si',
category: 'metalloid',
stpPhase: MatterPhase.solid,
appearance: 'crystalline, reflective with bluish-tinged faces',
number: 14,
period: 3,
row: 3,
column: 14,
shells: [2, 8, 4],
atomicMass: 28.085,
molecularDensity: 2.329,
heatCapacity: 19.789,
meltingPoint: 1687,
boilingPoint: 3538,
),
ChemicalElement(
name: 'Phosphorus',
symbol: 'P',
category: 'polyatomic nonmetal',
stpPhase: MatterPhase.solid,
appearance: 'colourless, waxy white, yellow, scarlet, red, violet, black',
number: 15,
period: 3,
row: 3,
column: 15,
shells: [2, 8, 5],
atomicMass: 30.9737619985,
molecularDensity: 1.823,
heatCapacity: 23.824,
),
ChemicalElement(
name: 'Sulfur',
symbol: 'S',
category: 'polyatomic nonmetal',
stpPhase: MatterPhase.solid,
appearance: 'lemon yellow sintered microcrystals',
number: 16,
period: 3,
row: 3,
column: 16,
shells: [2, 8, 6],
atomicMass: 32.06,
molecularDensity: 2.07,
heatCapacity: 22.75,
meltingPoint: 388.36,
boilingPoint: 717.8,
),
ChemicalElement(
name: 'Chlorine',
symbol: 'Cl',
category: 'diatomic nonmetal',
stpPhase: MatterPhase.gas,
appearance: 'pale yellow-green gas',
number: 17,
period: 3,
row: 3,
column: 17,
shells: [2, 8, 7],
atomicMass: 35.45,
molecularDensity: 3.2,
meltingPoint: 171.6,
boilingPoint: 239.11,
),
ChemicalElement(
name: 'Argon',
symbol: 'Ar',
category: 'noble gas',
stpPhase: MatterPhase.gas,
appearance:
'colorless gas exhibiting a lilac/violet glow when placed in a high voltage electric field',
number: 18,
period: 3,
row: 3,
column: 18,
shells: [2, 8, 8],
atomicMass: 39.9481,
molecularDensity: 1.784,
meltingPoint: 83.81,
boilingPoint: 87.302,
),
ChemicalElement(
name: 'Potassium',
symbol: 'K',
category: 'alkali metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery gray',
number: 19,
period: 4,
row: 4,
column: 1,
shells: [2, 8, 8, 1],
atomicMass: 39.09831,
molecularDensity: 0.862,
heatCapacity: 29.6,
meltingPoint: 336.7,
boilingPoint: 1032,
),
ChemicalElement(
name: 'Calcium',
symbol: 'Ca',
category: 'alkaline earth metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 20,
period: 4,
row: 4,
column: 2,
shells: [2, 8, 8, 2],
atomicMass: 40.0784,
molecularDensity: 1.55,
heatCapacity: 25.929,
meltingPoint: 1115,
boilingPoint: 1757,
),
ChemicalElement(
name: 'Scandium',
symbol: 'Sc',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 21,
period: 4,
row: 4,
column: 3,
shells: [2, 8, 9, 2],
atomicMass: 44.9559085,
molecularDensity: 2.985,
heatCapacity: 25.52,
meltingPoint: 1814,
boilingPoint: 3109,
),
ChemicalElement(
name: 'Titanium',
symbol: 'Ti',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery grey-white metallic',
number: 22,
period: 4,
row: 4,
column: 4,
shells: [2, 8, 10, 2],
atomicMass: 47.8671,
molecularDensity: 4.506,
heatCapacity: 25.06,
meltingPoint: 1941,
boilingPoint: 3560,
),
ChemicalElement(
name: 'Vanadium',
symbol: 'V',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'blue-silver-grey metal',
number: 23,
period: 4,
row: 4,
column: 5,
shells: [2, 8, 11, 2],
atomicMass: 50.94151,
molecularDensity: 6,
heatCapacity: 24.89,
meltingPoint: 2183,
boilingPoint: 3680,
),
ChemicalElement(
name: 'Chromium',
symbol: 'Cr',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery metallic',
number: 24,
period: 4,
row: 4,
column: 6,
shells: [2, 8, 13, 1],
atomicMass: 51.99616,
molecularDensity: 7.19,
heatCapacity: 23.35,
meltingPoint: 2180,
boilingPoint: 2944,
),
ChemicalElement(
name: 'Manganese',
symbol: 'Mn',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery metallic',
number: 25,
period: 4,
row: 4,
column: 7,
shells: [2, 8, 13, 2],
atomicMass: 54.9380443,
molecularDensity: 7.21,
heatCapacity: 26.32,
meltingPoint: 1519,
boilingPoint: 2334,
),
ChemicalElement(
name: 'Iron',
symbol: 'Fe',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'lustrous metallic with a grayish tinge',
number: 26,
period: 4,
row: 4,
column: 8,
shells: [2, 8, 14, 2],
atomicMass: 55.8452,
molecularDensity: 7.874,
heatCapacity: 25.1,
meltingPoint: 1811,
boilingPoint: 3134,
),
ChemicalElement(
name: 'Cobalt',
symbol: 'Co',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'hard lustrous gray metal',
number: 27,
period: 4,
row: 4,
column: 9,
shells: [2, 8, 15, 2],
atomicMass: 58.9331944,
molecularDensity: 8.9,
heatCapacity: 24.81,
meltingPoint: 1768,
boilingPoint: 3200,
),
ChemicalElement(
name: 'Nickel',
symbol: 'Ni',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'lustrous, metallic, and silver with a gold tinge',
number: 28,
period: 4,
row: 4,
column: 10,
shells: [2, 8, 16, 2],
atomicMass: 58.69344,
molecularDensity: 8.908,
heatCapacity: 26.07,
meltingPoint: 1728,
boilingPoint: 3003,
),
ChemicalElement(
name: 'Copper',
symbol: 'Cu',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'red-orange metallic luster',
number: 29,
period: 4,
row: 4,
column: 11,
shells: [2, 8, 18, 1],
atomicMass: 63.5463,
molecularDensity: 8.96,
heatCapacity: 24.44,
meltingPoint: 1357.77,
boilingPoint: 2835,
),
ChemicalElement(
name: 'Zinc',
symbol: 'Zn',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silver-gray',
number: 30,
period: 4,
row: 4,
column: 12,
shells: [2, 8, 18, 2],
atomicMass: 65.382,
molecularDensity: 7.14,
heatCapacity: 25.47,
meltingPoint: 692.68,
boilingPoint: 1180,
),
ChemicalElement(
name: 'Gallium',
symbol: 'Ga',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silver-white',
number: 31,
period: 4,
row: 4,
column: 13,
shells: [2, 8, 18, 3],
atomicMass: 69.7231,
molecularDensity: 5.91,
heatCapacity: 25.86,
meltingPoint: 302.9146,
boilingPoint: 2673,
),
ChemicalElement(
name: 'Germanium',
symbol: 'Ge',
category: 'metalloid',
stpPhase: MatterPhase.solid,
appearance: 'grayish-white',
number: 32,
period: 4,
row: 4,
column: 14,
shells: [2, 8, 18, 4],
atomicMass: 72.6308,
molecularDensity: 5.323,
heatCapacity: 23.222,
meltingPoint: 1211.4,
boilingPoint: 3106,
),
ChemicalElement(
name: 'Arsenic',
symbol: 'As',
category: 'metalloid',
stpPhase: MatterPhase.solid,
appearance: 'metallic grey',
number: 33,
period: 4,
row: 4,
column: 15,
shells: [2, 8, 18, 5],
atomicMass: 74.9215956,
molecularDensity: 5.727,
heatCapacity: 24.64,
),
ChemicalElement(
name: 'Selenium',
symbol: 'Se',
category: 'polyatomic nonmetal',
stpPhase: MatterPhase.solid,
appearance: 'black, red, and gray (not pictured) allotropes',
number: 34,
period: 4,
row: 4,
column: 16,
shells: [2, 8, 18, 6],
atomicMass: 78.9718,
molecularDensity: 4.81,
heatCapacity: 25.363,
meltingPoint: 494,
boilingPoint: 958,
),
ChemicalElement(
name: 'Bromine',
symbol: 'Br',
category: 'diatomic nonmetal',
stpPhase: MatterPhase.liquid,
appearance: '',
number: 35,
period: 4,
row: 4,
column: 17,
shells: [2, 8, 18, 7],
atomicMass: 79.904,
molecularDensity: 3.1028,
meltingPoint: 265.8,
boilingPoint: 332,
),
ChemicalElement(
name: 'Krypton',
symbol: 'Kr',
category: 'noble gas',
stpPhase: MatterPhase.gas,
appearance:
'colorless gas, exhibiting a whitish glow in a high electric field',
number: 36,
period: 4,
row: 4,
column: 18,
shells: [2, 8, 18, 8],
atomicMass: 83.7982,
molecularDensity: 3.749,
meltingPoint: 115.78,
boilingPoint: 119.93,
),
ChemicalElement(
name: 'Rubidium',
symbol: 'Rb',
category: 'alkali metal',
stpPhase: MatterPhase.solid,
appearance: 'grey white',
number: 37,
period: 5,
row: 5,
column: 1,
shells: [2, 8, 18, 8, 1],
atomicMass: 85.46783,
molecularDensity: 1.532,
heatCapacity: 31.06,
meltingPoint: 312.45,
boilingPoint: 961,
),
ChemicalElement(
name: 'Strontium',
symbol: 'Sr',
category: 'alkaline earth metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 38,
period: 5,
row: 5,
column: 2,
shells: [2, 8, 18, 8, 2],
atomicMass: 87.621,
molecularDensity: 2.64,
heatCapacity: 26.4,
meltingPoint: 1050,
boilingPoint: 1650,
),
ChemicalElement(
name: 'Yttrium',
symbol: 'Y',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 39,
period: 5,
row: 5,
column: 3,
shells: [2, 8, 18, 9, 2],
atomicMass: 88.905842,
molecularDensity: 4.472,
heatCapacity: 26.53,
meltingPoint: 1799,
boilingPoint: 3203,
),
ChemicalElement(
name: 'Zirconium',
symbol: 'Zr',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 40,
period: 5,
row: 5,
column: 4,
shells: [2, 8, 18, 10, 2],
atomicMass: 91.2242,
molecularDensity: 6.52,
heatCapacity: 25.36,
meltingPoint: 2128,
boilingPoint: 4650,
),
ChemicalElement(
name: 'Niobium',
symbol: 'Nb',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'gray metallic, bluish when oxidized',
number: 41,
period: 5,
row: 5,
column: 5,
shells: [2, 8, 18, 12, 1],
atomicMass: 92.906372,
molecularDensity: 8.57,
heatCapacity: 24.6,
meltingPoint: 2750,
boilingPoint: 5017,
),
ChemicalElement(
name: 'Molybdenum',
symbol: 'Mo',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'gray metallic',
number: 42,
period: 5,
row: 5,
column: 6,
shells: [2, 8, 18, 13, 1],
atomicMass: 95.951,
molecularDensity: 10.28,
heatCapacity: 24.06,
meltingPoint: 2896,
boilingPoint: 4912,
),
ChemicalElement(
name: 'Technetium',
symbol: 'Tc',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'shiny gray metal',
number: 43,
period: 5,
row: 5,
column: 7,
shells: [2, 8, 18, 13, 2],
atomicMass: 98,
molecularDensity: 11,
heatCapacity: 24.27,
meltingPoint: 2430,
boilingPoint: 4538,
),
ChemicalElement(
name: 'Ruthenium',
symbol: 'Ru',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white metallic',
number: 44,
period: 5,
row: 5,
column: 8,
shells: [2, 8, 18, 15, 1],
atomicMass: 101.072,
molecularDensity: 12.45,
heatCapacity: 24.06,
meltingPoint: 2607,
boilingPoint: 4423,
),
ChemicalElement(
name: 'Rhodium',
symbol: 'Rh',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white metallic',
number: 45,
period: 5,
row: 5,
column: 9,
shells: [2, 8, 18, 16, 1],
atomicMass: 102.905502,
molecularDensity: 12.41,
heatCapacity: 24.98,
meltingPoint: 2237,
boilingPoint: 3968,
),
ChemicalElement(
name: 'Palladium',
symbol: 'Pd',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 46,
period: 5,
row: 5,
column: 10,
shells: [2, 8, 18, 18],
atomicMass: 106.421,
molecularDensity: 12.023,
heatCapacity: 25.98,
meltingPoint: 1828.05,
boilingPoint: 3236,
),
ChemicalElement(
name: 'Silver',
symbol: 'Ag',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'lustrous white metal',
number: 47,
period: 5,
row: 5,
column: 11,
shells: [2, 8, 18, 18, 1],
atomicMass: 107.86822,
molecularDensity: 10.49,
heatCapacity: 25.35,
meltingPoint: 1234.93,
boilingPoint: 2435,
),
ChemicalElement(
name: 'Cadmium',
symbol: 'Cd',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery bluish-gray metallic',
number: 48,
period: 5,
row: 5,
column: 12,
shells: [2, 8, 18, 18, 2],
atomicMass: 112.4144,
molecularDensity: 8.65,
heatCapacity: 26.02,
meltingPoint: 594.22,
boilingPoint: 1040,
),
ChemicalElement(
name: 'Indium',
symbol: 'In',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery lustrous gray',
number: 49,
period: 5,
row: 5,
column: 13,
shells: [2, 8, 18, 18, 3],
atomicMass: 114.8181,
molecularDensity: 7.31,
heatCapacity: 26.74,
meltingPoint: 429.7485,
boilingPoint: 2345,
),
ChemicalElement(
name: 'Tin',
symbol: 'Sn',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery-white (beta, β) or gray (alpha, α)',
number: 50,
period: 5,
row: 5,
column: 14,
shells: [2, 8, 18, 18, 4],
atomicMass: 118.7107,
molecularDensity: 7.365,
heatCapacity: 27.112,
meltingPoint: 505.08,
boilingPoint: 2875,
),
ChemicalElement(
name: 'Antimony',
symbol: 'Sb',
category: 'metalloid',
stpPhase: MatterPhase.solid,
appearance: 'silvery lustrous gray',
number: 51,
period: 5,
row: 5,
column: 15,
shells: [2, 8, 18, 18, 5],
atomicMass: 121.7601,
molecularDensity: 6.697,
heatCapacity: 25.23,
meltingPoint: 903.78,
boilingPoint: 1908,
),
ChemicalElement(
name: 'Tellurium',
symbol: 'Te',
category: 'metalloid',
stpPhase: MatterPhase.solid,
appearance: '',
number: 52,
period: 5,
row: 5,
column: 16,
shells: [2, 8, 18, 18, 6],
atomicMass: 127.603,
molecularDensity: 6.24,
heatCapacity: 25.73,
meltingPoint: 722.66,
boilingPoint: 1261,
),
ChemicalElement(
name: 'Iodine',
symbol: 'I',
category: 'diatomic nonmetal',
stpPhase: MatterPhase.solid,
appearance: 'lustrous metallic gray, violet as a gas',
number: 53,
period: 5,
row: 5,
column: 17,
shells: [2, 8, 18, 18, 7],
atomicMass: 126.904473,
molecularDensity: 4.933,
meltingPoint: 386.85,
boilingPoint: 457.4,
),
ChemicalElement(
name: 'Xenon',
symbol: 'Xe',
category: 'noble gas',
stpPhase: MatterPhase.gas,
appearance:
'colorless gas, exhibiting a blue glow when placed in a high voltage electric field',
number: 54,
period: 5,
row: 5,
column: 18,
shells: [2, 8, 18, 18, 8],
atomicMass: 131.2936,
molecularDensity: 5.894,
meltingPoint: 161.4,
boilingPoint: 165.051,
),
ChemicalElement(
name: 'Cesium',
symbol: 'Cs',
category: 'alkali metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery gold',
number: 55,
period: 6,
row: 6,
column: 1,
shells: [2, 8, 18, 18, 8, 1],
atomicMass: 132.905451966,
molecularDensity: 1.93,
heatCapacity: 32.21,
meltingPoint: 301.7,
boilingPoint: 944,
),
ChemicalElement(
name: 'Barium',
symbol: 'Ba',
category: 'alkaline earth metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 56,
period: 6,
row: 6,
column: 2,
shells: [2, 8, 18, 18, 8, 2],
atomicMass: 137.3277,
molecularDensity: 3.51,
heatCapacity: 28.07,
meltingPoint: 1000,
boilingPoint: 2118,
),
ChemicalElement(
name: 'Lanthanum',
symbol: 'La',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 57,
period: 6,
row: 9,
column: 3,
shells: [2, 8, 18, 18, 9, 2],
atomicMass: 138.905477,
molecularDensity: 6.162,
heatCapacity: 27.11,
meltingPoint: 1193,
boilingPoint: 3737,
),
ChemicalElement(
name: 'Cerium',
symbol: 'Ce',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 58,
period: 6,
row: 9,
column: 4,
shells: [2, 8, 18, 19, 9, 2],
atomicMass: 140.1161,
molecularDensity: 6.77,
heatCapacity: 26.94,
meltingPoint: 1068,
boilingPoint: 3716,
),
ChemicalElement(
name: 'Praseodymium',
symbol: 'Pr',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'grayish white',
number: 59,
period: 6,
row: 9,
column: 5,
shells: [2, 8, 18, 21, 8, 2],
atomicMass: 140.907662,
molecularDensity: 6.77,
heatCapacity: 27.2,
meltingPoint: 1208,
boilingPoint: 3403,
),
ChemicalElement(
name: 'Neodymium',
symbol: 'Nd',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 60,
period: 6,
row: 9,
column: 6,
shells: [2, 8, 18, 22, 8, 2],
atomicMass: 144.2423,
molecularDensity: 7.01,
heatCapacity: 27.45,
meltingPoint: 1297,
boilingPoint: 3347,
),
ChemicalElement(
name: 'Promethium',
symbol: 'Pm',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'metallic',
number: 61,
period: 6,
row: 9,
column: 7,
shells: [2, 8, 18, 23, 8, 2],
atomicMass: 145,
molecularDensity: 7.26,
meltingPoint: 1315,
boilingPoint: 3273,
),
ChemicalElement(
name: 'Samarium',
symbol: 'Sm',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 62,
period: 6,
row: 9,
column: 8,
shells: [2, 8, 18, 24, 8, 2],
atomicMass: 150.362,
molecularDensity: 7.52,
heatCapacity: 29.54,
meltingPoint: 1345,
boilingPoint: 2173,
),
ChemicalElement(
name: 'Europium',
symbol: 'Eu',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: '',
number: 63,
period: 6,
row: 9,
column: 9,
shells: [2, 8, 18, 25, 8, 2],
atomicMass: 151.9641,
molecularDensity: 5.264,
heatCapacity: 27.66,
meltingPoint: 1099,
boilingPoint: 1802,
),
ChemicalElement(
name: 'Gadolinium',
symbol: 'Gd',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 64,
period: 6,
row: 9,
column: 10,
shells: [2, 8, 18, 25, 9, 2],
atomicMass: 157.253,
molecularDensity: 7.9,
heatCapacity: 37.03,
meltingPoint: 1585,
boilingPoint: 3273,
),
ChemicalElement(
name: 'Terbium',
symbol: 'Tb',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 65,
period: 6,
row: 9,
column: 11,
shells: [2, 8, 18, 27, 8, 2],
atomicMass: 158.925352,
molecularDensity: 8.23,
heatCapacity: 28.91,
meltingPoint: 1629,
boilingPoint: 3396,
),
ChemicalElement(
name: 'Dysprosium',
symbol: 'Dy',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 66,
period: 6,
row: 9,
column: 12,
shells: [2, 8, 18, 28, 8, 2],
atomicMass: 162.5001,
molecularDensity: 8.54,
heatCapacity: 27.7,
meltingPoint: 1680,
boilingPoint: 2840,
),
ChemicalElement(
name: 'Holmium',
symbol: 'Ho',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 67,
period: 6,
row: 9,
column: 13,
shells: [2, 8, 18, 29, 8, 2],
atomicMass: 164.930332,
molecularDensity: 8.79,
heatCapacity: 27.15,
meltingPoint: 1734,
boilingPoint: 2873,
),
ChemicalElement(
name: 'Erbium',
symbol: 'Er',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 68,
period: 6,
row: 9,
column: 14,
shells: [2, 8, 18, 30, 8, 2],
atomicMass: 167.2593,
molecularDensity: 9.066,
heatCapacity: 28.12,
meltingPoint: 1802,
boilingPoint: 3141,
),
ChemicalElement(
name: 'Thulium',
symbol: 'Tm',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery gray',
number: 69,
period: 6,
row: 9,
column: 15,
shells: [2, 8, 18, 31, 8, 2],
atomicMass: 168.934222,
molecularDensity: 9.32,
heatCapacity: 27.03,
meltingPoint: 1818,
boilingPoint: 2223,
),
ChemicalElement(
name: 'Ytterbium',
symbol: 'Yb',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: '',
number: 70,
period: 6,
row: 9,
column: 16,
shells: [2, 8, 18, 32, 8, 2],
atomicMass: 173.0451,
molecularDensity: 6.9,
heatCapacity: 26.74,
meltingPoint: 1097,
boilingPoint: 1469,
),
ChemicalElement(
name: 'Lutetium',
symbol: 'Lu',
category: 'lanthanide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 71,
period: 6,
row: 9,
column: 17,
shells: [2, 8, 18, 32, 9, 2],
atomicMass: 174.96681,
molecularDensity: 9.841,
heatCapacity: 26.86,
meltingPoint: 1925,
boilingPoint: 3675,
),
ChemicalElement(
name: 'Hafnium',
symbol: 'Hf',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'steel gray',
number: 72,
period: 6,
row: 6,
column: 4,
shells: [2, 8, 18, 32, 10, 2],
atomicMass: 178.492,
molecularDensity: 13.31,
heatCapacity: 25.73,
meltingPoint: 2506,
boilingPoint: 4876,
),
ChemicalElement(
name: 'Tantalum',
symbol: 'Ta',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'gray blue',
number: 73,
period: 6,
row: 6,
column: 5,
shells: [2, 8, 18, 32, 11, 2],
atomicMass: 180.947882,
molecularDensity: 16.69,
heatCapacity: 25.36,
meltingPoint: 3290,
boilingPoint: 5731,
),
ChemicalElement(
name: 'Tungsten',
symbol: 'W',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'grayish white, lustrous',
number: 74,
period: 6,
row: 6,
column: 6,
shells: [2, 8, 18, 32, 12, 2],
atomicMass: 183.841,
molecularDensity: 19.25,
heatCapacity: 24.27,
meltingPoint: 3695,
boilingPoint: 6203,
),
ChemicalElement(
name: 'Rhenium',
symbol: 'Re',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery-grayish',
number: 75,
period: 6,
row: 6,
column: 7,
shells: [2, 8, 18, 32, 13, 2],
atomicMass: 186.2071,
molecularDensity: 21.02,
heatCapacity: 25.48,
meltingPoint: 3459,
boilingPoint: 5869,
),
ChemicalElement(
name: 'Osmium',
symbol: 'Os',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery, blue cast',
number: 76,
period: 6,
row: 6,
column: 8,
shells: [2, 8, 18, 32, 14, 2],
atomicMass: 190.233,
molecularDensity: 22.59,
heatCapacity: 24.7,
meltingPoint: 3306,
boilingPoint: 5285,
),
ChemicalElement(
name: 'Iridium',
symbol: 'Ir',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 77,
period: 6,
row: 6,
column: 9,
shells: [2, 8, 18, 32, 15, 2],
atomicMass: 192.2173,
molecularDensity: 22.56,
heatCapacity: 25.1,
meltingPoint: 2719,
boilingPoint: 4403,
),
ChemicalElement(
name: 'Platinum',
symbol: 'Pt',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 78,
period: 6,
row: 6,
column: 10,
shells: [2, 8, 18, 32, 17, 1],
atomicMass: 195.0849,
molecularDensity: 21.45,
heatCapacity: 25.86,
meltingPoint: 2041.4,
boilingPoint: 4098,
),
ChemicalElement(
name: 'Gold',
symbol: 'Au',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: 'metallic yellow',
number: 79,
period: 6,
row: 6,
column: 11,
shells: [2, 8, 18, 32, 18, 1],
atomicMass: 196.9665695,
molecularDensity: 19.3,
heatCapacity: 25.418,
meltingPoint: 1337.33,
boilingPoint: 3243,
),
ChemicalElement(
name: 'Mercury',
symbol: 'Hg',
category: 'transition metal',
stpPhase: MatterPhase.liquid,
appearance: 'silvery',
number: 80,
period: 6,
row: 6,
column: 12,
shells: [2, 8, 18, 32, 18, 2],
atomicMass: 200.5923,
molecularDensity: 13.534,
heatCapacity: 27.983,
meltingPoint: 234.321,
boilingPoint: 629.88,
),
ChemicalElement(
name: 'Thallium',
symbol: 'Tl',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 81,
period: 6,
row: 6,
column: 13,
shells: [2, 8, 18, 32, 18, 3],
atomicMass: 204.38,
molecularDensity: 11.85,
heatCapacity: 26.32,
meltingPoint: 577,
boilingPoint: 1746,
),
ChemicalElement(
name: 'Lead',
symbol: 'Pb',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: 'metallic gray',
number: 82,
period: 6,
row: 6,
column: 14,
shells: [2, 8, 18, 32, 18, 4],
atomicMass: 207.21,
molecularDensity: 11.34,
heatCapacity: 26.65,
meltingPoint: 600.61,
boilingPoint: 2022,
),
ChemicalElement(
name: 'Bismuth',
symbol: 'Bi',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: 'lustrous silver',
number: 83,
period: 6,
row: 6,
column: 15,
shells: [2, 8, 18, 32, 18, 5],
atomicMass: 208.980401,
molecularDensity: 9.78,
heatCapacity: 25.52,
meltingPoint: 544.7,
boilingPoint: 1837,
),
ChemicalElement(
name: 'Polonium',
symbol: 'Po',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery',
number: 84,
period: 6,
row: 6,
column: 16,
shells: [2, 8, 18, 32, 18, 6],
atomicMass: 209,
molecularDensity: 9.196,
heatCapacity: 26.4,
meltingPoint: 527,
boilingPoint: 1235,
),
ChemicalElement(
name: 'Astatine',
symbol: 'At',
category: 'metalloid',
stpPhase: MatterPhase.solid,
appearance: 'unknown, probably metallic',
number: 85,
period: 6,
row: 6,
column: 17,
shells: [2, 8, 18, 32, 18, 7],
atomicMass: 210,
molecularDensity: 6.35,
meltingPoint: 575,
boilingPoint: 610,
),
ChemicalElement(
name: 'Radon',
symbol: 'Rn',
category: 'noble gas',
stpPhase: MatterPhase.gas,
appearance:
'colorless gas, occasionally glows green or red in discharge tubes',
number: 86,
period: 6,
row: 6,
column: 18,
shells: [2, 8, 18, 32, 18, 8],
atomicMass: 222,
molecularDensity: 9.73,
meltingPoint: 202,
boilingPoint: 211.5,
),
ChemicalElement(
name: 'Francium',
symbol: 'Fr',
category: 'alkali metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 87,
period: 7,
row: 7,
column: 1,
shells: [2, 8, 18, 32, 18, 8, 1],
atomicMass: 223,
molecularDensity: 1.87,
meltingPoint: 300,
boilingPoint: 950,
),
ChemicalElement(
name: 'Radium',
symbol: 'Ra',
category: 'alkaline earth metal',
stpPhase: MatterPhase.solid,
appearance: 'silvery white metallic',
number: 88,
period: 7,
row: 7,
column: 2,
shells: [2, 8, 18, 32, 18, 8, 2],
atomicMass: 226,
molecularDensity: 5.5,
meltingPoint: 1233,
boilingPoint: 2010,
),
ChemicalElement(
name: 'Actinium',
symbol: 'Ac',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: '',
number: 89,
period: 7,
row: 10,
column: 3,
shells: [2, 8, 18, 32, 18, 9, 2],
atomicMass: 227,
molecularDensity: 10,
heatCapacity: 27.2,
meltingPoint: 1500,
boilingPoint: 3500,
),
ChemicalElement(
name: 'Thorium',
symbol: 'Th',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'silvery, often with black tarnish',
number: 90,
period: 7,
row: 10,
column: 4,
shells: [2, 8, 18, 32, 18, 10, 2],
atomicMass: 232.03774,
molecularDensity: 11.724,
heatCapacity: 26.23,
meltingPoint: 2023,
boilingPoint: 5061,
),
ChemicalElement(
name: 'Protactinium',
symbol: 'Pa',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'bright, silvery metallic luster',
number: 91,
period: 7,
row: 10,
column: 5,
shells: [2, 8, 18, 32, 20, 9, 2],
atomicMass: 231.035882,
molecularDensity: 15.37,
meltingPoint: 1841,
boilingPoint: 4300,
),
ChemicalElement(
name: 'Uranium',
symbol: 'U',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: '',
number: 92,
period: 7,
row: 10,
column: 6,
shells: [2, 8, 18, 32, 21, 9, 2],
atomicMass: 238.028913,
molecularDensity: 19.1,
heatCapacity: 27.665,
meltingPoint: 1405.3,
boilingPoint: 4404,
),
ChemicalElement(
name: 'Neptunium',
symbol: 'Np',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'silvery metallic',
number: 93,
period: 7,
row: 10,
column: 7,
shells: [2, 8, 18, 32, 22, 9, 2],
atomicMass: 237,
molecularDensity: 20.45,
heatCapacity: 29.46,
meltingPoint: 912,
boilingPoint: 4447,
),
ChemicalElement(
name: 'Plutonium',
symbol: 'Pu',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white, tarnishing to dark gray in air',
number: 94,
period: 7,
row: 10,
column: 8,
shells: [2, 8, 18, 32, 24, 8, 2],
atomicMass: 244,
molecularDensity: 19.816,
heatCapacity: 35.5,
meltingPoint: 912.5,
boilingPoint: 3505,
),
ChemicalElement(
name: 'Americium',
symbol: 'Am',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'silvery white',
number: 95,
period: 7,
row: 10,
column: 9,
shells: [2, 8, 18, 32, 25, 8, 2],
atomicMass: 243,
molecularDensity: 12,
heatCapacity: 62.7,
meltingPoint: 1449,
boilingPoint: 2880,
),
ChemicalElement(
name: 'Curium',
symbol: 'Cm',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'silvery metallic, glows purple in the dark',
number: 96,
period: 7,
row: 10,
column: 10,
shells: [2, 8, 18, 32, 25, 9, 2],
atomicMass: 247,
molecularDensity: 13.51,
meltingPoint: 1613,
boilingPoint: 3383,
),
ChemicalElement(
name: 'Berkelium',
symbol: 'Bk',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'silvery',
number: 97,
period: 7,
row: 10,
column: 11,
shells: [2, 8, 18, 32, 27, 8, 2],
atomicMass: 247,
molecularDensity: 14.78,
meltingPoint: 1259,
boilingPoint: 2900,
),
ChemicalElement(
name: 'Californium',
symbol: 'Cf',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'silvery',
number: 98,
period: 7,
row: 10,
column: 12,
shells: [2, 8, 18, 32, 28, 8, 2],
atomicMass: 251,
molecularDensity: 15.1,
meltingPoint: 1173,
boilingPoint: 1743,
),
ChemicalElement(
name: 'Einsteinium',
symbol: 'Es',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: 'silver-colored',
number: 99,
period: 7,
row: 10,
column: 13,
shells: [2, 8, 18, 32, 29, 8, 2],
atomicMass: 252,
molecularDensity: 8.84,
meltingPoint: 1133,
boilingPoint: 1269,
),
ChemicalElement(
name: 'Fermium',
symbol: 'Fm',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: '',
number: 100,
period: 7,
row: 10,
column: 14,
shells: [2, 8, 18, 32, 30, 8, 2],
atomicMass: 257,
meltingPoint: 1800,
),
ChemicalElement(
name: 'Mendelevium',
symbol: 'Md',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: '',
number: 101,
period: 7,
row: 10,
column: 15,
shells: [2, 8, 18, 32, 31, 8, 2],
atomicMass: 258,
meltingPoint: 1100,
),
ChemicalElement(
name: 'Nobelium',
symbol: 'No',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: '',
number: 102,
period: 7,
row: 10,
column: 16,
shells: [2, 8, 18, 32, 32, 8, 2],
atomicMass: 259,
meltingPoint: 1100,
),
ChemicalElement(
name: 'Lawrencium',
symbol: 'Lr',
category: 'actinide',
stpPhase: MatterPhase.solid,
appearance: '',
number: 103,
period: 7,
row: 10,
column: 17,
shells: [2, 8, 18, 32, 32, 8, 3],
atomicMass: 266,
meltingPoint: 1900,
),
ChemicalElement(
name: 'Rutherfordium',
symbol: 'Rf',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 104,
period: 7,
row: 7,
column: 4,
shells: [2, 8, 18, 32, 32, 10, 2],
atomicMass: 267,
molecularDensity: 23.2,
meltingPoint: 2400,
boilingPoint: 5800,
),
ChemicalElement(
name: 'Dubnium',
symbol: 'Db',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 105,
period: 7,
row: 7,
column: 5,
shells: [2, 8, 18, 32, 32, 11, 2],
atomicMass: 268,
molecularDensity: 29.3,
),
ChemicalElement(
name: 'Seaborgium',
symbol: 'Sg',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 106,
period: 7,
row: 7,
column: 6,
shells: [2, 8, 18, 32, 32, 12, 2],
atomicMass: 269,
molecularDensity: 35,
),
ChemicalElement(
name: 'Bohrium',
symbol: 'Bh',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 107,
period: 7,
row: 7,
column: 7,
shells: [2, 8, 18, 32, 32, 13, 2],
atomicMass: 270,
molecularDensity: 37.1,
),
ChemicalElement(
name: 'Hassium',
symbol: 'Hs',
category: 'transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 108,
period: 7,
row: 7,
column: 8,
shells: [2, 8, 18, 32, 32, 14, 2],
atomicMass: 269,
molecularDensity: 40.7,
meltingPoint: 126,
),
ChemicalElement(
name: 'Meitnerium',
symbol: 'Mt',
category: 'unknown, probably transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 109,
period: 7,
row: 7,
column: 9,
shells: [2, 8, 18, 32, 32, 15, 2],
atomicMass: 278,
molecularDensity: 37.4,
),
ChemicalElement(
name: 'Darmstadtium',
symbol: 'Ds',
category: 'unknown, probably transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 110,
period: 7,
row: 7,
column: 10,
shells: [2, 8, 18, 32, 32, 16, 2],
atomicMass: 281,
molecularDensity: 34.8,
),
ChemicalElement(
name: 'Roentgenium',
symbol: 'Rg',
category: 'unknown, probably transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 111,
period: 7,
row: 7,
column: 11,
shells: [2, 8, 18, 32, 32, 17, 2],
atomicMass: 282,
molecularDensity: 28.7,
),
ChemicalElement(
name: 'Copernicium',
symbol: 'Cn',
category: 'transition metal',
stpPhase: MatterPhase.gas,
appearance: '',
number: 112,
period: 7,
row: 7,
column: 12,
shells: [2, 8, 18, 32, 32, 18, 2],
atomicMass: 285,
molecularDensity: 23.7,
boilingPoint: 3570,
),
ChemicalElement(
name: 'Nihonium',
symbol: 'Nh',
category: 'unknown, probably transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 113,
period: 7,
row: 7,
column: 13,
shells: [2, 8, 18, 32, 32, 18, 3],
atomicMass: 286,
molecularDensity: 16,
meltingPoint: 700,
boilingPoint: 1430,
),
ChemicalElement(
name: 'Flerovium',
symbol: 'Fl',
category: 'post-transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 114,
period: 7,
row: 7,
column: 14,
shells: [2, 8, 18, 32, 32, 18, 4],
atomicMass: 289,
molecularDensity: 14,
meltingPoint: 340,
boilingPoint: 420,
),
ChemicalElement(
name: 'Moscovium',
symbol: 'Mc',
category: 'unknown, probably post-transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 115,
period: 7,
row: 7,
column: 15,
shells: [2, 8, 18, 32, 32, 18, 5],
atomicMass: 289,
molecularDensity: 13.5,
meltingPoint: 670,
boilingPoint: 1400,
),
ChemicalElement(
name: 'Livermorium',
symbol: 'Lv',
category: 'unknown, probably post-transition metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 116,
period: 7,
row: 7,
column: 16,
shells: [2, 8, 18, 32, 32, 18, 6],
atomicMass: 293,
molecularDensity: 12.9,
meltingPoint: 709,
boilingPoint: 1085,
),
ChemicalElement(
name: 'Tennessine',
symbol: 'Ts',
category: 'unknown, probably metalloid',
stpPhase: MatterPhase.solid,
appearance: '',
number: 117,
period: 7,
row: 7,
column: 17,
shells: [2, 8, 18, 32, 32, 18, 7],
atomicMass: 294,
molecularDensity: 7.17,
meltingPoint: 723,
boilingPoint: 883,
),
ChemicalElement(
name: 'Oganesson',
symbol: 'Og',
category: 'unknown, predicted to be noble gas',
stpPhase: MatterPhase.solid,
appearance: '',
number: 118,
period: 7,
row: 7,
column: 18,
shells: [2, 8, 18, 32, 32, 18, 8],
atomicMass: 294,
molecularDensity: 4.95,
boilingPoint: 350,
),
ChemicalElement(
name: 'Ununennium',
symbol: 'Uue',
category: 'unknown, but predicted to be an alkali metal',
stpPhase: MatterPhase.solid,
appearance: '',
number: 119,
period: 8,
row: 8,
column: 1,
shells: [2, 8, 18, 32, 32, 18, 8, 1],
atomicMass: 315,
molecularDensity: 3,
boilingPoint: 630,
),
];