### Atomic Data for Manganese (Mn)

### Atomic Number = 25

### Atomic Weight = 54.93805

### Reference = E95

    Isotope   Mass       Abundance Spin Mag Moment

    55Mn      54.938047  100%      5/2  +3.4687

    Mn I  Ground State 1s22s22p63s23p63d54s2  6S5/2
          Ionization energy  59959.4 cm-1 (7.43402 eV)   Ref. SC85

    Mn II Ground State 1s22s22p63s23p63d54s  7S3
          Ionization energy  126145.0 cm-1 (15.6400 eV)   Ref. SC85