### Atomic Data for Copper (Cu)

### Atomic Number = 29

### Atomic Weight = 63.546

### Reference = E95

    Isotope   Mass       Abundance Spin Mag Moment

    63Cu      62.939598  69.17%    3/2  +2.2233
    65Cu      64.927793  30.83%    3/2  +2.3817

    Cu I  Ground State 1s22s22p63s23p63d104s  2S1/2
          Ionization energy  62317.44 cm-1 (7.72638 eV)   Ref. SM90

    Cu II Ground State 1s22s22p63s23p63d10  1S0
          Ionization energy  163669.2 cm-1 (20.2924 eV)   Ref. SM90