NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Berkelium (Bk)

Atomic Number = 97

Atomic Weight = (247)

Reference E95



Isotope    Mass        Abundance Spin Mag Moment
247Bk 247.070300 0 3/2 249Bk 249.074980 0 7/2 2.0
 
Bk I  Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p65f97s2  615/2
      Ionization energy  49989 cm-1 (6.1979 eV)   Ref. KDEE97
 
Bk II Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p65f97s  (15/2,1/28