NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

[skip navigation] National Institute of Standards and Technology NIST Physical Measurement Laboratory Neptunium (Np) 

Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableNeptunium Atomic DataNeptunium Strong LinesNeptunium Neutral Atom Persistent LinesNeptunium Neutral Atom Energy LevelsNeptunium Singly Ionized Persistent LinesNeptunium Singly Ionized Energy LevelsNeptunium References
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Energy Levels of Singly Ionized Neptunium ( Np II )

  Configuration   Term   J   Level(cm-1)   Ref. 
              
5f46d7s7L5     0.000BW92b
     
5f47s25I4    24.270BW92b
     
5f5(6H°5/2)7s(5/2,1/2)°2    83.490BW92b
  3  1053.100BW92b
     
5f46d7s7L6  1774.150BW92b
     
5f46d7s7K4  2473.180BW92b
     
5f47s25I5  3836.145BW92b
     
5f46d7s7K5  4007.270BW92b
     
5f46d7s7I3  4209.465BW92b
     
5f46d7s7L7  4797.670BW92b
     
5f46d7s5L6  5068.225BW92b
     
5f46d7s7I4  5451.830BW92b
     
5f47s7p°4 24030.585BW92b
     
Np III (5f5 6H°5/2)Limit   
     


Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableNeptunium Atomic DataNeptunium Strong LinesNeptunium Neutral Atom Persistent LinesNeptunium Neutral Atom Energy LevelsNeptunium Singly Ionized Persistent LinesNeptunium Singly Ionized Energy LevelsNeptunium References
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