Xe/NIST/Xe_p53__NIST.states
           1         0.000000      2     0.5   150.000000 1s                                                 2S                              +
           2 248874716.00      2     0.5   155.000000 2p                                                 2P                              -
           3 252322059.00      4     1.5   156.000000 2p                                                 2P                              -
           4 248932080.00      2     0.5   150.000000 2s                                                 2S                              +
           5 296058600.00      2     0.5   700.000000 3p                                                 2P                              -
           6 297082900.00      4     1.5   400.000000 3p                                                 2P                              -
           7 296076000.00      2     0.5   900.000000 3s                                                 2S                              +
           8 297081081.00      4     1.5    20.000000 3d                                                 2D                              +
           9 297396981.00      6     2.5    20.000000 3d                                                 2D                              +