Energy Levels of Singly Ionized Radium ( Ra II )

Configuration   Term   J     Level(cm-1) Ref.


7s              2S     1/2       0.00    M58
 
6d              2D     3/2   12084.38    M58
                       5/2   13743.11    M58
 
7p              2P°    1/2   21351.20    M58
                       3/2   26208.86    M58
 
8s              2S     1/2   43405.01    M58
 
7d              2D     3/2   48744.04    M58
                       5/2   49240.48    M58
 
5f              2F°    5/2   48987.98    M58
                       7/2   49272.31    M58
 
8p              2P°    1/2   50606.01    M58
                       3/2   52392.05    M58
 
9s              2S     1/2   59165.23    M58
 
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Ra III (1S0)    Limit        81842.31    M58