#!/usr/bin/env python
"""This file contains a dictionary of periodic elements."""
# following info about elements has been taken from https://www.lfd.uci.edu/~gohlke/code/elements.py.html
ELEMENTS = {
"H": 1,
"He": 2,
"Li": 3,
"Be": 4,
"B": 5,
"C": 6,
"N": 7,
"O": 8,
"F": 9,
"Ne": 10,
"Na": 11,
"Mg": 12,
"Al": 13,
"Si": 14,
"P": 15,
"S": 16,
"Cl": 17,
"Ar": 18,
"K": 19,
"Ca": 20,
"Sc": 21,
"Ti": 22,
"V": 23,
"Cr": 24,
"Mn": 25,
"Fe": 26,
"Co": 27,
"Ni": 28,
"Cu": 29,
"Zn": 30,
"Ga": 31,
"Ge": 32,
"As": 33,
"Se": 34,
"Br": 35,
"Kr": 36,
"Rb": 37,
"Sr": 38,
"Y": 39,
"Zr": 40,
"Nb": 41,
"Mo": 42,
"Tc": 43,
"Ru": 44,
"Rh": 45,
"Pd": 46,
"Ag": 47,
"Cd": 48,
"In": 49,
"Sn": 50,
"Sb": 51,
"Te": 52,
"I": 53,
"Xe": 54,
"Cs": 55,
"Ba": 56,
"La": 57,
"Ce": 58,
"Pr": 59,
"Nd": 60,
"Pm": 61,
"Sm": 62,
"Eu": 63,
"Gd": 64,
"Tb": 65,
"Dy": 66,
"Ho": 67,
"Er": 68,
"Tm": 69,
"Yb": 70,
"Lu": 71,
"Hf": 72,
"Ta": 73,
"W": 74,
"Re": 75,
"Os": 76,
"Ir": 77,
"Pt": 78,
"Au": 79,
"Hg": 80,
"Tl": 81,
"Pb": 82,
"Bi": 83,
"Po": 84,
"At": 85,
"Rn": 86,
"Fr": 87,
"Ra": 88,
"Ac": 89,
"Th": 90,
"Pa": 91,
"U": 92,
"Np": 93,
"Pu": 94,
"Am": 95,
"Cm": 96,
"Bk": 97,
"Cf": 98,
"Es": 99,
"Fm": 100,
"Md": 101,
"No": 102,
"Lr": 103,
"Rf": 104,
"Db": 105,
"Sg": 106,
"Bh": 107,
"Hs": 108,
"Mt": 109,
}
elements_inversed = {value : key for (key, value) in ELEMENTS.items()}
atomic_masses = {
'H': 1.0079,
'He': 4.0026,
'Li': 6.941,
'Be': 9.0122,
'B': 10.811,
'C': 12.0107,
'N': 14.0067,
'O': 15.9994,
'F': 18.9984,
'Ne': 20.1797,
'Na': 22.9897,
'Mg': 24.305,
'Al': 26.9815,
'Si': 28.0855,
'P': 30.9738,
'S': 32.065,
'Cl': 35.453,
'K': 39.0983,
'Ar': 39.948,
'Ca': 40.078,
'Sc': 44.9559,
'Ti': 47.867,
'V': 50.9415,
'Cr': 51.9961,
'Mn': 54.938,
'Fe': 55.845,
'Ni': 58.6934,
'Co': 58.9332,
'Cu': 63.546,
'Zn': 65.39,
'Ga': 69.723,
'Ge': 72.64,
'As': 74.9216,
'Se': 78.96,
'Br': 79.904,
'Kr': 83.8,
'Rb': 85.4678,
'Sr': 87.62,
'Y': 88.9059,
'Zr': 91.224,
'Nb': 92.9064,
'Mo': 95.94,
'Tc': 98.0,
'Ru': 101.07,
'Rh': 102.9055,
'Pd': 106.42,
'Ag': 107.8682,
'Cd': 112.411,
'In': 114.818,
'Sn': 118.71,
'Sb': 121.76,
'I': 126.9045,
'Te': 127.6,
'Xe': 131.293,
'Cs': 132.9055,
'Ba': 137.327,
'La': 138.9055,
'Ce': 140.116,
'Pr': 140.9077,
'Nd': 144.24,
'Pm': 145.0,
'Sm': 150.36,
'Eu': 151.964,
'Gd': 157.25,
'Tb': 158.9253,
'Dy': 162.5,
'Ho': 164.9303,
'Er': 167.259,
'Tm': 168.9342,
'Yb': 173.04,
'Lu': 174.967,
'Hf': 178.49,
'Ta': 180.9479,
'W': 183.84,
'Re': 186.207,
'Os': 190.23,
'Ir': 192.217,
'Pt': 195.078,
'Au': 196.9665,
'Hg': 200.59,
'Tl': 204.3833,
'Pb': 207.2,
'Bi': 208.9804,
'Po': 209.0,
'At': 210.0,
'Rn': 222.0,
'Fr': 223.0,
'Ra': 226.0,
'Ac': 227.0,
'Pa': 231.0359,
'Th': 232.0381,
'Np': 237.0,
'U': 238.0289,
'Am': 243.0,
'Pu': 244.0,
'Cm': 247.0,
'Bk': 247.0,
'Cf': 251.0,
'Es': 252.0,
'Fm': 257.0,
'Md': 258.0,
'No': 259.0,
'Rf': 261.0,
'Lr': 262.0,
'Db': 262.0,
'Bh': 264.0,
'Sg': 266.0,
'Mt': 268.0,
'Rg': 272.0,
'Hs': 277.0}
[docs]def atomic_mass(element):
return atomic_masses[element]
[docs]def atomic_number(element):
return ELEMENTS[element]