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 

O I  Ground State 1s22s22p4 3P2
       Ionization energy  109837.02 cm-1 (13.61805 eV)   Ref. MG93

O II Ground State 1s22s22p3 43/2
       Ionization energy  283270.9 cm-1 (35.1211 eV)   Ref. MKM93