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elements.py
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atomic_number_to_symbol = {
1: "H",
2: "He",
3: "Li",
4: "Be",
5: "B",
6: "C",
7: "N",
8: "O",
9: "F",
10: "Ne",
11: "Na",
12: "Mg",
13: "Al",
14: "Si",
15: "P",
16: "S",
17: "Cl",
18: "Ar",
19: "K",
20: "Ca",
21: "Sc",
22: "Ti",
23: "V",
24: "Cr",
25: "Mn",
26: "Fe",
27: "Co",
28: "Ni",
29: "Cu",
30: "Zn",
31: "Ga",
32: "Ge",
33: "As",
34: "Se",
35: "Br",
36: "Kr",
37: "Rb",
38: "Sr",
39: "Y",
40: "Zr",
41: "Nb",
42: "Mo",
43: "Tc",
44: "Ru",
45: "Rh",
46: "Pd",
47: "Ag",
48: "Cd",
49: "In",
50: "Sn",
51: "Sb",
52: "Te",
53: "I",
54: "Xe",
55: "Cs",
56: "Ba",
57: "La",
58: "Ce",
59: "Pr",
60: "Nd",
61: "Pm",
62: "Sm",
63: "Eu",
64: "Gd",
65: "Tb",
66: "Dy",
67: "Ho",
68: "Er",
69: "Tm",
70: "Yb",
71: "Lu",
72: "Hf",
73: "Ta",
74: "W",
75: "Re",
76: "Os",
77: "Ir",
78: "Pt",
79: "Au",
80: "Hg",
81: "Tl",
82: "Pb",
83: "Bi",
84: "Po",
85: "At",
86: "Rn",
87: "Fr",
88: "Ra",
89: "Ac",
90: "Th",
91: "Pa",
92: "U",
93: "Np",
94: "Pu",
95: "Am",
96: "Cm",
97: "Bk",
98: "Cf",
99: "Es",
100: "Fm",
101: "Md",
102: "No",
103: "Lr",
104: "Rf",
105: "Db",
106: "Sg",
107: "Bh",
108: "Hs",
109: "Mt",
110: "Ds",
111: "Rg",
112: "Cn",
113: "Nh",
114: "Fl",
115: "Mc",
116: "Lv",
117: "Ts",
118: "Og",
}
def get_element_symbol(atomic_number: int) -> str:
return atomic_number_to_symbol.get(atomic_number, "Unknown atomic number")
symbol_to_atomic_number = {v: k for k, v in atomic_number_to_symbol.items()}
def get_atomic_number(symbol: str) -> int:
return symbol_to_atomic_number.get(symbol, -1)
symbols = symbol_to_atomic_number.keys()