"""Tabulated data about the elements."""
# From https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020
# With missing masses from WebElements
# yapf: disable
data = {
"H": {
"atomic number": 1,
"atomic symbol": "H",
"element": "hydrogen",
"atomic weight": 1.008,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"He": {
"atomic number": 2,
"atomic symbol": "He",
"element": "helium",
"atomic weight": 4.0026,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Li": {
"atomic number": 3,
"atomic symbol": "Li",
"element": "lithium",
"atomic weight": 6.967499999999999,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Be": {
"atomic number": 4,
"atomic symbol": "Be",
"element": "beryllium",
"atomic weight": 9.0122,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"B": {
"atomic number": 5,
"atomic symbol": "B",
"element": "boron",
"atomic weight": 10.8135,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"C": {
"atomic number": 6,
"atomic symbol": "C",
"element": "carbon",
"atomic weight": 12.0105,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"N": {
"atomic number": 7,
"atomic symbol": "N",
"element": "nitrogen",
"atomic weight": 14.007,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"O": {
"atomic number": 8,
"atomic symbol": "O",
"element": "oxygen",
"atomic weight": 15.999500000000001,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"F": {
"atomic number": 9,
"atomic symbol": "F",
"element": "fluorine",
"atomic weight": 18.998,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ne": {
"atomic number": 10,
"atomic symbol": "Ne",
"element": "neon",
"atomic weight": 20.18,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Na": {
"atomic number": 11,
"atomic symbol": "Na",
"element": "sodium",
"atomic weight": 22.99,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Mg": {
"atomic number": 12,
"atomic symbol": "Mg",
"element": "magnesium",
"atomic weight": 24.3055,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Al": {
"atomic number": 13,
"atomic symbol": "Al",
"element": "aluminium",
"atomic weight": 26.982,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Si": {
"atomic number": 14,
"atomic symbol": "Si",
"element": "silicon",
"atomic weight": 28.085,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"P": {
"atomic number": 15,
"atomic symbol": "P",
"element": "phosphorus",
"atomic weight": 30.974,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"S": {
"atomic number": 16,
"atomic symbol": "S",
"element": "sulfur",
"atomic weight": 32.067499999999995,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Cl": {
"atomic number": 17,
"atomic symbol": "Cl",
"element": "chlorine",
"atomic weight": 35.451499999999996,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ar": {
"atomic number": 18,
"atomic symbol": "Ar",
"element": "argon",
"atomic weight": 39.8775,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"K": {
"atomic number": 19,
"atomic symbol": "K",
"element": "potassium",
"atomic weight": 39.098,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ca": {
"atomic number": 20,
"atomic symbol": "Ca",
"element": "calcium",
"atomic weight": 40.078,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Sc": {
"atomic number": 21,
"atomic symbol": "Sc",
"element": "scandium",
"atomic weight": 44.956,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ti": {
"atomic number": 22,
"atomic symbol": "Ti",
"element": "titanium",
"atomic weight": 47.867,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"V": {
"atomic number": 23,
"atomic symbol": "V",
"element": "vanadium",
"atomic weight": 50.942,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Cr": {
"atomic number": 24,
"atomic symbol": "Cr",
"element": "chromium",
"atomic weight": 51.996,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Mn": {
"atomic number": 25,
"atomic symbol": "Mn",
"element": "manganese",
"atomic weight": 54.938,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Fe": {
"atomic number": 26,
"atomic symbol": "Fe",
"element": "iron",
"atomic weight": 55.845,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Co": {
"atomic number": 27,
"atomic symbol": "Co",
"element": "cobalt",
"atomic weight": 58.933,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ni": {
"atomic number": 28,
"atomic symbol": "Ni",
"element": "nickel",
"atomic weight": 58.693,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Cu": {
"atomic number": 29,
"atomic symbol": "Cu",
"element": "copper",
"atomic weight": 63.546,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Zn": {
"atomic number": 30,
"atomic symbol": "Zn",
"element": "zinc",
"atomic weight": 65.38,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ga": {
"atomic number": 31,
"atomic symbol": "Ga",
"element": "gallium",
"atomic weight": 69.723,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ge": {
"atomic number": 32,
"atomic symbol": "Ge",
"element": "germanium",
"atomic weight": 72.63,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"As": {
"atomic number": 33,
"atomic symbol": "As",
"element": "arsenic",
"atomic weight": 74.922,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Se": {
"atomic number": 34,
"atomic symbol": "Se",
"element": "selenium",
"atomic weight": 78.971,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Br": {
"atomic number": 35,
"atomic symbol": "Br",
"element": "bromine",
"atomic weight": 79.904,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Kr": {
"atomic number": 36,
"atomic symbol": "Kr",
"element": "krypton",
"atomic weight": 83.798,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Rb": {
"atomic number": 37,
"atomic symbol": "Rb",
"element": "rubidium",
"atomic weight": 85.468,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Sr": {
"atomic number": 38,
"atomic symbol": "Sr",
"element": "strontium",
"atomic weight": 87.62,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Y": {
"atomic number": 39,
"atomic symbol": "Y",
"element": "yttrium",
"atomic weight": 88.906,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Zr": {
"atomic number": 40,
"atomic symbol": "Zr",
"element": "zirconium",
"atomic weight": 91.224,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Nb": {
"atomic number": 41,
"atomic symbol": "Nb",
"element": "niobium",
"atomic weight": 92.906,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Mo": {
"atomic number": 42,
"atomic symbol": "Mo",
"element": "molybdenum",
"atomic weight": 95.95,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Tc": {
"atomic number": 43,
"atomic symbol": "Tc",
"element": "technetium",
"atomic weight": 96.906,
"source": "webelements 30 July 2020"
},
"Ru": {
"atomic number": 44,
"atomic symbol": "Ru",
"element": "ruthenium",
"atomic weight": 101.07,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Rh": {
"atomic number": 45,
"atomic symbol": "Rh",
"element": "rhodium",
"atomic weight": 102.91,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Pd": {
"atomic number": 46,
"atomic symbol": "Pd",
"element": "palladium",
"atomic weight": 106.42,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ag": {
"atomic number": 47,
"atomic symbol": "Ag",
"element": "silver",
"atomic weight": 107.87,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Cd": {
"atomic number": 48,
"atomic symbol": "Cd",
"element": "cadmium",
"atomic weight": 112.41,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"In": {
"atomic number": 49,
"atomic symbol": "In",
"element": "indium",
"atomic weight": 114.82,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Sn": {
"atomic number": 50,
"atomic symbol": "Sn",
"element": "tin",
"atomic weight": 118.71,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Sb": {
"atomic number": 51,
"atomic symbol": "Sb",
"element": "antimony",
"atomic weight": 121.76,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Te": {
"atomic number": 52,
"atomic symbol": "Te",
"element": "tellurium",
"atomic weight": 127.6,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"I": {
"atomic number": 53,
"atomic symbol": "I",
"element": "iodine",
"atomic weight": 126.9,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Xe": {
"atomic number": 54,
"atomic symbol": "Xe",
"element": "xenon",
"atomic weight": 131.29,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Cs": {
"atomic number": 55,
"atomic symbol": "Cs",
"element": "caesium",
"atomic weight": 132.91,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ba": {
"atomic number": 56,
"atomic symbol": "Ba",
"element": "barium",
"atomic weight": 137.33,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"La": {
"atomic number": 57,
"atomic symbol": "La",
"element": "lanthanum",
"atomic weight": 138.91,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ce": {
"atomic number": 58,
"atomic symbol": "Ce",
"element": "cerium",
"atomic weight": 140.12,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Pr": {
"atomic number": 59,
"atomic symbol": "Pr",
"element": "praseodymium",
"atomic weight": 140.91,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Nd": {
"atomic number": 60,
"atomic symbol": "Nd",
"element": "neodymium",
"atomic weight": 144.24,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Pm": {
"atomic number": 61,
"atomic symbol": "Pm",
"element": "promethium",
"atomic weight": 144.91,
"source": "webelements 30 July 2020"
},
"Sm": {
"atomic number": 62,
"atomic symbol": "Sm",
"element": "samarium",
"atomic weight": 150.36,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Eu": {
"atomic number": 63,
"atomic symbol": "Eu",
"element": "europium",
"atomic weight": 151.96,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Gd": {
"atomic number": 64,
"atomic symbol": "Gd",
"element": "gadolinium",
"atomic weight": 157.25,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Tb": {
"atomic number": 65,
"atomic symbol": "Tb",
"element": "terbium",
"atomic weight": 158.93,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Dy": {
"atomic number": 66,
"atomic symbol": "Dy",
"element": "dysprosium",
"atomic weight": 162.5,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ho": {
"atomic number": 67,
"atomic symbol": "Ho",
"element": "holmium",
"atomic weight": 164.93,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Er": {
"atomic number": 68,
"atomic symbol": "Er",
"element": "erbium",
"atomic weight": 167.26,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Tm": {
"atomic number": 69,
"atomic symbol": "Tm",
"element": "thulium",
"atomic weight": 168.93,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Yb": {
"atomic number": 70,
"atomic symbol": "Yb",
"element": "ytterbium",
"atomic weight": 173.05,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Lu": {
"atomic number": 71,
"atomic symbol": "Lu",
"element": "lutetium",
"atomic weight": 174.97,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Hf": {
"atomic number": 72,
"atomic symbol": "Hf",
"element": "hafnium",
"atomic weight": 178.49,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ta": {
"atomic number": 73,
"atomic symbol": "Ta",
"element": "tantalum",
"atomic weight": 180.95,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"W": {
"atomic number": 74,
"atomic symbol": "W",
"element": "tungsten",
"atomic weight": 183.84,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Re": {
"atomic number": 75,
"atomic symbol": "Re",
"element": "rhenium",
"atomic weight": 186.21,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Os": {
"atomic number": 76,
"atomic symbol": "Os",
"element": "osmium",
"atomic weight": 190.23,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Ir": {
"atomic number": 77,
"atomic symbol": "Ir",
"element": "iridium",
"atomic weight": 192.22,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Pt": {
"atomic number": 78,
"atomic symbol": "Pt",
"element": "platinum",
"atomic weight": 195.08,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Au": {
"atomic number": 79,
"atomic symbol": "Au",
"element": "gold",
"atomic weight": 196.97,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Hg": {
"atomic number": 80,
"atomic symbol": "Hg",
"element": "mercury",
"atomic weight": 200.59,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Tl": {
"atomic number": 81,
"atomic symbol": "Tl",
"element": "thallium",
"atomic weight": 204.385,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Pb": {
"atomic number": 82,
"atomic symbol": "Pb",
"element": "lead",
"atomic weight": 207.2,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Bi": {
"atomic number": 83,
"atomic symbol": "Bi",
"element": "bismuth",
"atomic weight": 208.98,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Po": {
"atomic number": 84,
"atomic symbol": "Po",
"element": "polonium",
"atomic weight": 208.98,
"source": "webelements 30 July 2020"
},
"At": {
"atomic number": 85,
"atomic symbol": "At",
"element": "astatine",
"atomic weight": 209.99,
"source": "webelements 30 July 2020"
},
"Rn": {
"atomic number": 86,
"atomic symbol": "Rn",
"element": "radon",
"atomic weight": 222.02,
"source": "webelements 30 July 2020"
},
"Fr": {
"atomic number": 87,
"atomic symbol": "Fr",
"element": "francium",
"atomic weight": 223.02,
"source": "webelements 30 July 2020"
},
"Ra": {
"atomic number": 88,
"atomic symbol": "Ra",
"element": "radium",
"atomic weight": 226.03,
"source": "webelements 30 July 2020"
},
"Ac": {
"atomic number": 89,
"atomic symbol": "Ac",
"element": "actinium",
"atomic weight": 227.03,
"source": "webelements 30 July 2020"
},
"Th": {
"atomic number": 90,
"atomic symbol": "Th",
"element": "thorium",
"atomic weight": 232.04,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Pa": {
"atomic number": 91,
"atomic symbol": "Pa",
"element": "protactinium",
"atomic weight": 231.04,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"U": {
"atomic number": 92,
"atomic symbol": "U",
"element": "uranium",
"atomic weight": 238.03,
"source": "https://ciaaw.org/abridged-atomic-weights.htm 30 July 2020"
},
"Np": {
"atomic number": 93,
"atomic symbol": "Np",
"element": "neptunium",
"atomic weight": 237.05,
"source": "webelements 30 July 2020"
},
"Pu": {
"atomic number": 94,
"atomic symbol": "Pu",
"element": "plutonium",
"atomic weight": 244.06,
"source": "webelements 30 July 2020"
},
"Am": {
"atomic number": 95,
"atomic symbol": "Am",
"element": "americium",
"atomic weight": 243.06,
"source": "webelements 30 July 2020"
},
"Cm": {
"atomic number": 96,
"atomic symbol": "Cm",
"element": "curium",
"atomic weight": 247.07,
"source": "webelements 30 July 2020"
},
"Bk": {
"atomic number": 97,
"atomic symbol": "Bk",
"element": "berkelium",
"atomic weight": 247.07,
"source": "webelements 30 July 2020"
},
"Cf": {
"atomic number": 98,
"atomic symbol": "Cf",
"element": "californium",
"atomic weight": 251.08,
"source": "webelements 30 July 2020"
},
"Es": {
"atomic number": 99,
"atomic symbol": "Es",
"element": "einsteinium",
"atomic weight": 252.08,
"source": "webelements 30 July 2020"
},
"Fm": {
"atomic number": 100,
"atomic symbol": "Fm",
"element": "fermium",
"atomic weight": 257.10,
"source": "webelements 30 July 2020"
},
"Md": {
"atomic number": 101,
"atomic symbol": "Md",
"element": "mendelevium",
"atomic weight": 258.10,
"source": "webelements 30 July 2020"
},
"No": {
"atomic number": 102,
"atomic symbol": "No",
"element": "nobelium",
"atomic weight": 259.10,
"source": "webelements 30 July 2020"
},
"Lr": {
"atomic number": 103,
"atomic symbol": "Lr",
"element": "lawrencium",
"atomic weight": 262.11,
"source": "webelements 30 July 2020"
},
"Rf": {
"atomic number": 104,
"atomic symbol": "Rf",
"element": "rutherfordium",
"atomic weight": 267.12,
"source": "webelements 30 July 2020"
},
"Db": {
"atomic number": 105,
"atomic symbol": "Db",
"element": "dubnium",
"atomic weight": 270.13,
"source": "webelements 30 July 2020"
},
"Sg": {
"atomic number": 106,
"atomic symbol": "Sg",
"element": "seaborgium",
"atomic weight": 269.13,
"source": "webelements 30 July 2020"
},
"Bh": {
"atomic number": 107,
"atomic symbol": "Bh",
"element": "bohrium",
"atomic weight": 270.13,
"source": "webelements 30 July 2020"
},
"Hs": {
"atomic number": 108,
"atomic symbol": "Hs",
"element": "hassium",
"atomic weight": 269.13,
"source": "webelements 30 July 2020"
},
"Mt": {
"atomic number": 109,
"atomic symbol": "Mt",
"element": "meitnerium",
"atomic weight": 278.16,
"source": "webelements 30 July 2020"
},
"Ds": {
"atomic number": 110,
"atomic symbol": "Ds",
"element": "darmstadtium",
"atomic weight": 281.17,
"source": "webelements 30 July 2020"
},
"Rg": {
"atomic number": 111,
"atomic symbol": "Rg",
"element": "roentgenium",
"atomic weight": 281.17,
"source": "webelements 30 July 2020"
},
"Cn": {
"atomic number": 112,
"atomic symbol": "Cn",
"element": "copernicium",
"atomic weight": 285.18,
"source": "webelements 30 July 2020"
},
"Nh": {
"atomic number": 113,
"atomic symbol": "Nh",
"element": "nihonium",
"atomic weight": 286.18,
"source": "webelements 30 July 2020"
},
"Fl": {
"atomic number": 114,
"atomic symbol": "Fl",
"element": "flerovium",
"atomic weight": 289.19,
"source": "webelements 30 July 2020"
},
"Mc": {
"atomic number": 115,
"atomic symbol": "Mc",
"element": "moscovium",
"atomic weight": 289.20,
"source": "webelements 30 July 2020"
},
"Lv": {
"atomic number": 116,
"atomic symbol": "Lv",
"element": "livermorium",
"atomic weight": 293.20,
"source": "webelements 30 July 2020"
},
"Ts": {
"atomic number": 117,
"atomic symbol": "Ts",
"element": "tennessine",
"atomic weight": 293.21,
"source": "webelements 30 July 2020"
},
"Og": {
"atomic number": 118,
"atomic symbol": "Og",
"element": "oganesson",
"atomic weight": 294.21,
"source": "webelements 30 July 2020"
}
}
# yapf: enable
symbol_to_atno = {}
atno_to_symbol = {}
symbol_to_mass = {}
atno_to_mass = {}
for symbol, value in data.items():
symbol_to_atno[symbol] = value["atomic number"]
atno_to_symbol[value["atomic number"]] = symbol
symbol_to_mass[symbol] = value["atomic weight"]
atno_to_mass[value["atomic number"]] = value["atomic weight"]
del symbol
del value
[docs]
def to_atnos(symbols):
"""Convert element symbols to atomic numbers.
Parameters
----------
symbols : [str]
The atomic symbols
Returns
-------
atnos : [int]
The corresponding atomic numbers (1..118)
"""
return [symbol_to_atno[x] for x in symbols]
[docs]
def to_symbols(atnos):
"""Convert atomic numbers to element symbols.
Parameters
----------
atnos : [int]
The atomic numbers (1..118)
Returns
-------
symbols : [str]
The corresponding atomic symbols
"""
return [atno_to_symbol[x] for x in atnos]
[docs]
def masses(atno_or_symbols):
"""Get the atomic mass given atomic symbols or numbers.
Parameters
----------
atno_or_symbols : [int or str]
The atomic numbers or symbols
Returns
-------
masses : [float]
The atomic masses
"""
result = []
for value in atno_or_symbols:
if isinstance(value, int):
result.append(atno_to_mass[value])
else:
result.append(symbol_to_mass[value])
return result
