Neutral AtomSingly Ionized Atom
Finding listPeriodic TableAtomic DataStrong LinesNeutral Atom Persistent Lines Neutral Atom Energy LevelsSingly Ionized Persistent LinesSingly Ionized Energy LevelsReferences

Atomic Data for Selenium (Se)

Atomic Number = 34

Atomic Weight = 78.96

Reference = E95


Isotope   Mass       Abundance Spin Mag Moment

74Se      73.922475  0.9%      0    
76Se      75.919212  9.2%      0    
77Se      76.919212  7.6%      1/2  +0.535506
78Se      77.9173    23.7%     0    
80Se      79.916520  49.8%     0    
82Se      81.916698  8.8%      0    

 
Se I  Ground State 1s22s22p63s23p63d104s24p4  3P2
      Ionization energy  78658.35 cm-1 (9.75239 eV)   Ref. MV74,LP77
 
Se II Ground State 1s22s22p63s23p63d104s24p3  4S°3/2
      Ionization energy  170900 cm-1 (21.19 eV)   Ref. CR58