NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Iodine (I)

Atomic Number = 53

Atomic Weight = 126.90447

Reference E95

  Isotope   Mass   Abundance   Spin   Mag Moment 

I I  Ground State 1s22s22p63s23p63d104s24p64d105s25p5 2P3/2
       Ionization energy  84295.14 cm-1 (10.45126 eV)   Ref. M62

I II Ground State 1s22s22p63s23p63d104s24p64d105s25p4 3P2
       Ionization energy  154304 cm-1 (19.1313 eV)   Ref. MC60