name_to_elec = {"X": 0,
                "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,
                "Ds": 110,
                "Rg": 111,
                "Cn": 112,
                "Uut": 113,
                "Fl": 114,
                "Uup": 115,
                "Lv": 116,
                "Uus": 117,
                "Uuo": 118}