NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Selenium (Se)

Atomic Number = 34

Atomic Weight = 78.96

Reference E95


  Isotope   Mass   Abundance   Spin   Mag Moment 
              
74Se73.9224750.9%0 
76Se75.9192129.2%0 
77Se76.9192127.6%1/2+0.535506
78Se77.917323.7%0 
80Se79.91652049.8%0 
82Se81.9166988.8%0 

Se I  Ground State 1s22s22p63s23p63d104s24p4 3P2
       Ionization energy  78658.35 cm-1 (9.75239 eV)   Ref. MV74,LP77

Se II Ground State 1s22s22p63s23p63d104s24p3 43/2
       Ionization energy  170900 cm-1 (21.19 eV)   Ref. CR58