NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Boron (B)

Atomic Number = 5

Atomic Weight = 10.81

Reference E95

  Isotope   Mass   Abundance   Spin   Mag Moment 

B I  Ground State 1s22s22p 21/2
       Ionization energy  66928.04 cm-1 (8.29802 eV)   Ref. R02

B II Ground State 1s22s2 1S0
       Ionization energy  202887.0 cm-1 (25.1548 eV)   Ref. R98