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 Lines Actinium 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.

7s2 1S 0 0.00 MFT57 6d7s 3D 1 4739.63 MFT57 2 5267.16 MFT57 3 7426.52 MFT57 6d7s 1D 2 9087.54 MFT57 6d2 3F 2 13236.46 MFT57 3 14949.21 MFT57 4 16756.90 MFT57 6d2 3P 0 17737.10 MFT57 1 19015.32 MFT57 2 22199.45 MFT57 6d2 1D 2 19203.02 MFT57 6d2 1G 4 20848.23 MFT57 7s7p 3P° 0 20956.40 MFT57 1 22180.52 MFT57 2 26446.96 MFT57 6d7p 3F° 2 28201.11 MFT57 6d7p ° 1 29250.40 MFT57 5f7s 1F° 3 29881.09 MFT57 6d7p ° 3 31174.60 MFT57 6d7p 1D° 2 31878.87 MFT57 5f7s 3F° 4 32965.55 MFT57 6d7p 3D° 2 33304.96 MFT57 1 33388.61 MFT57 3 36144.35 MFT57 ------------------------------------------- Ac III (7s 2S1/2) Limit 94800 MHRS74


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