atomic_numbers.py

ATOMIC_NUMBERS = {
    "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,
}