NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Krypton (Kr)

Atomic Number = 36

Atomic Weight = 83.80

Reference E95


Isotope   Mass       Abundance Spin Mag Moment

78Kr      77.920400  0.35%     0    
80Kr      79.916380  2.25%     0    
82Kr      81.913482  11.6%     0    
83Kr      82.914135  11.5%     9/2  -0.970
84Kr      83.911507  57.0%     0    
86Kr      85.910616  17.3%     0    

 
Kr I  Ground State 1s22s22p63s23p63d104s24p6  1S0
      Ionization energy  112914.50 cm-1 (13.99961 eV)   Ref. YG94,BHU02
 
Kr II Ground State 1s22s22p63s23p63d104s24p5  2P°3/2
      Ionization energy  196475.4 cm-1 (24.35984 eV)   Ref. SM91