Persistent Lines of Singly Ionized Berkelium ( Bk II )

Wavelength  Energy         Configuration          Term         J
   (Å)      Levels (cm-1)

 2878.572        0.00      5f9(6H°15/2)7s         (15/2,1/2)°  8
             34729.28      5f9(6H°15/2)7p3/2      (15/2,3/2)   9
  return
 
 2951.761     1487.51      5f9(6H°15/2)7s         (15/2,1/2)°  7
             35355.68                                          8
  return
 
 3247.262        0.00      5f9(6H°15/2)7s         (15/2,1/2)°  8
             30786.30                                          7
  return
 
 3412.131     1487.51      5f9(6H°15/2)7s         (15/2,1/2)°  7
             30786.30                                          7
  return
 
 3542.187        0.00      5f9(6H°15/2)7s         (15/2,1/2)°  8
             28223.10      5f86d7s                7H           8
  return
 
 3894.547     1487.51      5f9(6H°15/2)7s         (15/2,1/2)°  7
             27157.155     5f9(6H°15/2)7p1/2      (15/2,1/2)   8
  return
 
 3906.094        0.00      5f9(6H°15/2)7s         (15/2,1/2)°  8
             25593.755     5f86d7s                9H           8
  return
 
 4189.692        0.00      5f9(6H°15/2)7s         (15/2,1/2)°  8
             23861.38                                          7
  return
 
 4197.441        0.00      5f9(6H°15/2)7s         (15/2,1/2)°  8
             23817.32                                          7
  return