NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Oxygen (O)

Atomic Number = 8

Atomic Weight = 15.9994

Reference E95


Isotope   Mass       Abundance Spin Mag Moment

16O       15.994915  99.76%    0    
17O       16.999311  0.048%    5/2  -1.89379
18O       17.999160  0.20%     0    

 
O I  Ground State 1s22s22p4  3P2
     Ionization energy  109837.02 cm-1 (13.61805 eV)   Ref. MG93
 
O II Ground State 1s22s22p3  4S°3/2
     Ionization energy  283270.9 cm-1 (35.1211 eV)   Ref. MKM93