### Atomic Data for Chlorine (Cl)

### Atomic Number = 17

### Atomic Weight = 35.4527

### Reference = E95

    Isotope   Mass       Abundance Spin Mag Moment

    35Cl      34.968852  75.77%    3/2  +0.82187
    37Cl      36.965903  24.23%    3/2  +0.68412

    Cl I  Ground State 1s22s22p63s23p5  2P°3/2
          Ionization energy  104591.0 cm-1 (12.96763 eV)   Ref. RK69

    Cl II Ground State 1s22s22p63s23p4  3P2
          Ionization energy  192070 cm-1 (23.8136 eV)   Ref. RK74