Energy Levels of Neutral Protactinium ( Pa I )
Configuration Term J Level(cm-1) Ref.
5f2(3H)6d7s2 4K 11/2 0.000 BW92b
5f2(3H)6d7s2 4K 13/2 3711.625 BW92b
5f2(3H)6d7s2 4K 15/2 7512.695 BW92b
5f2(3H)6d7s2 4K 17/2 11198.270 BW92b
5f2(3H)6d7s2 4I 9/2 825.415 BW92b
5f2(3H)6d7s2 4I 11/2 4121.450 BW92b
5f2(3H)6d7s2 4I 13/2 7383.295 BW92b
5f2(3H)6d7s2 4I 15/2 10049.875 BW92b
5f26d7s2 a 4G 5/2 1618.325 BW92b
5f26d7s2 a 4G 7/2 4713.870 BW92b
5f26d7s2 a 4G 9/2 7330.815 BW92b
5f(2F)6d2(3F)7s2 4H° 7/2 1978.220 BW92b
5f(2F)6d2(3F)7s2 4H° 9/2 5335.730 BW92b
5f(2F)6d2(3F)7s2 4H° 11/2 8419.075 BW92b
5f(2F)6d2(3F)7s2 4H° 13/2 11498.725 BW92b
5f(2F)6d2(3F)7s2 4I° 9/2 2659.405 BW92b
5f26d7s2 a 4H 7/2 2966.530 BW92b
5f2(3H)6d7s2 9/2 3323.860 BW92b
5f2(3H)6d7s2 11/2 4576.005 BW92b
5f26d7s2 b 4H 7/2 5149.465 BW92b
5f2(3H)6d7s2 5/2 5938.650 BW92b
5f26d7s2 a 4H 9/2 6149.805 BW92b
5f(2F)6d2(3F)7s2 4I° 11/2 6302.230 BW92b
° 7/2 6425.830 BW92b
5f26d7s2 b 4G 5/2 6708.56 BW92b
5f2(3H)6d2(3F)(5L)7s 6L 11/2 7000.290 BW92b
5f27s27p1/2 (4,1/2)° 9/2 11444.705 BW92b
5f27s27p1/2 (4,1/2)° 7/2 12118.750 BW92b
° 7/2 12911.260 BW92b
5f37s2 4I° 9/2 13018.610 BW92b
5f26d7s7p 6L° 11/2 14393.410 BW92b
° 5/2 14519.355 BW92b
° 5/2 14683.005 BW92b
° 9/2 14876.545 BW92b
5f37s2 4I° 11/2 16147.025 BW92b
° 9/2 16463.970 BW92b
° 7/2 16665.690 BW92b
° 11/2 16819.670 BW92b
5f26d7s7p 6K° 11/2 17156.785 BW92b
° 9/2 18661.700 BW92b
° 13/2 20606.365 BW92b
° 11/2 25104.455 BW92b
° 9/2 28316.365 BW92b
Pa II (5f27s2 3H4) Limit 47500 S74