NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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

Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableActinium Atomic DataActinium Strong LinesActinium Neutral Atom Persistent LinesActinium Neutral Atom Energy LevelsActinium Singly Ionized Persistent LinesActinium Singly Ionized Energy LevelsActinium References
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Energy Levels of Singly Ionized Actinium ( Ac II )

  Configuration   Term   J   Level(cm-1)   Ref. 
              
7s21S0     0.00MFT57
     
6d7s3D1  4739.63MFT57
  2  5267.16MFT57
  3  7426.52MFT57
     
6d7s1D2  9087.54MFT57
     
6d23F2 13236.46MFT57
  3 14949.21MFT57
  4 16756.90MFT57
     
6d23P0 17737.10MFT57
  1 19015.32MFT57
  2 22199.45MFT57
     
6d21D2 19203.02MFT57
     
6d21G4 20848.23MFT57
     
7s7p3P°0 20956.40MFT57
  1 22180.52MFT57
  2 26446.96MFT57
     
6d7p3F°2 28201.11MFT57
     
6d7p°1 29250.40MFT57
     
5f7s1F°3 29881.09MFT57
     
6d7p°3 31174.60MFT57
     
6d7p1D°2 31878.87MFT57
     
5f7s3F°4 32965.55MFT57
     
6d7p3D°2 33304.96MFT57
  1 33388.61MFT57
  3 36144.35MFT57
     
Ac III (7s 2S1/2)Limit  94800MHRS74
     


Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableActinium Atomic DataActinium Strong LinesActinium Neutral Atom Persistent LinesActinium Neutral Atom Energy LevelsActinium Singly Ionized Persistent LinesActinium Singly Ionized Energy LevelsActinium References
Switch to ASCII Version