Neptunium (Np)
Energy Levels of Neutral Neptunium ( Np I )
Configuration Term J Level(cm-1) Ref.
5f4(5I)6d7s2 6L 11/2 0.000 BW92b
13/2 3502.855 BW92b
15/2 6903.440 BW92b
17/2 10020.990 BW92b
19/2 12930.155 BW92b
21/2 16051.925 BW92b
5f4(5I)6d7s2 6K 9/2 2033.965 BW92b
11/2 5185.015 BW92b
13/2 7792.035 BW92b
15/2 10502.850 BW92b
17/2 12948.015 BW92b
19/2 15319.605 BW92b
5f4(5I)6d7s2 6I 7/2 3450.995 BW92b
9/2 6643.510 BW92b
11/2 9694.045 BW92b
13/2 11382.815 BW92b
15/2 13049.900 BW92b
17/2 14870.460 BW92b
5f4(5I)6d7s2 4G 5/2 4615.670 BW92b
5f4(5I)6d7s2 6G 3/2 6474.180 BW92b
5f4(5I)6d7s2 7/2 6892.085 BW92b
5f4(5I)6d7s2 6H 5/2 7015.155 BW92b
5f4(5I)6d2(3F)7s 8M 11/2 7112.430 BW92b
5f4(5I4)7s27p1/2 ° 9/2 11940.075 BW92b
7/2 12692.765 BW92b
5f4(5I)6d7s7p 8M° 11/2 14338.880 BW92b
5f4(5I5)7s27p1/2 ° 11/2 15743.235 BW92b
5f4(5I)6d7s7p 8M° 13/2 16334.010 BW92b
5f4(5I)6d7s7p 8L° 9/2 16459.340 BW92b
5f46d7s7p 6M° 13/2 17007.700 BW92b
5f4(5I4)7s27p3/2 ° 5/2 18194.400 BW92b
° 9/2 18200.530 BW92b
° 9/2 19100.810 BW92b
5f4(5I)6d7s7p 8M° 15/2 19827.885 BW92b
° 9/2 19985.980 BW92b
° 9/2 21851.300 BW92b
° 13/2 25075.145 BW92b
° 13/2 28551.035 BW92b
° 13/2 28711.465 BW92b
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Np II (5f46d7s 7L5) Limit 50536 KDEE97
