NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Terbium (Tb)

Atomic Number = 65

Atomic Weight = 158.92534

Reference E95


  Isotope   Mass   Abundance   Spin   Mag Moment 
              
159Tb158.925342100%3/2+1.95

Tb I  Ground State (1s22s22p63s23p63d104s24p64d105s25p6)4f96s2 615/2
       Ionization energy  47294 cm-1 (5.8638 eV)   Ref. WSPC78

Tb II Ground State (1s22s22p63s23p63d104s24p64d105s25p6)4f9(615/2)6s (15/2,1/28
       Ionization energy  92900 cm-1 (11.52 eV)   Ref. SR65