NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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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