Table 1
List of configurations of Sc ions generating fine-structure levels below the first ionization threshold.
| Ion | n R | n S | Configurations | |
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|
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| Sc xxi | 55 | nl | ||
| Sc xx | 55 | 1s2 | 1snl | |
| Sc xix | 54 | 1s2nl | ||
| Sc xviii | 54 | 53 | 2s2 | 2snl |
| 2p2 | 2pnl(≤10) | |||
| Sc xvii | 53 | 72 | 2s2nl | |
| 2s2p2 | 2s2pnl(≤10) | |||
| 2p3 | 2p2nl(≤6) | |||
| Sc xvi | 53 | 56 | 2s22p2 | 2s22pnl |
| 2s2p3 | 2s2p2nl(≤9) | |||
| 2p4 | 2p3nl(≤5) | |||
| Sc xv | 53 | 51 | 2s22p3 | 2s22p2nl |
| 2s2p4 | 2s2p3nl(≤9) | |||
| 2p5 | 2p4nl(≤4) | |||
| Sc xiv | 53 | 25 | 2s22p4 | 2s22p3nl |
| 2s2p5 | 2s2p4nl(≤6) | |||
| 2p6 | 2p5nl(≤4p) | |||
| Sc xiii | 53 | 16 | 2s22p5 | 2s22p4nl |
| 2s2p6 | 2s2p5nl(≤5) | |||
| 2p6nl(≤3) | ||||
| Sc xii | 53 | 7 | 2s22p6 | 2s22p5nl |
| 2s2p6nl(≤4) | ||||
| Sc xi | 52 | 2s22p6nl | ||
| Sc x | 52 | 32 | 3s2 | 3snl |
| 3p2 | 3pnl(≤7) | |||
| 3d2 | 3dnl(≤5d) | |||
| Sc ix | 51 | 42 | 3s2nl | |
| 3s 3p2 | 3s3pnl(≤7) | |||
| 3p3 | 3p2nl(≤5d) | |||
| 3s3d2 | 3s3dnl(≤4) | |||
| 3p3d2 | 3p3dnl(≤4p) | |||
| 3d3 | ||||
| Sc viii | 51 | 41 | 3s23p2 | 3s23pnl |
| 3s 3p3 | 3s3p2nl(≤7d) | |||
| 3s23d2 | 3s23dnl(≤5p) | |||
| 3p4 | 3p3nl(≤4) | |||
| 3s3p3d2 | 3s3p3dnl(≤4) | |||
| 3p23d2 | 3s3d3 | |||
| 3p3d3 | ||||
| Sc vii | 51 | 32 | 3s23p3 | 3s23p2nl |
| 3s3p4 | 3s3p3nl(≤6) | |||
| 3s23p3d2 | 3s23p3dnl(≤4) | |||
| 3p5 | 3p4nl(≤4p) | |||
| 3s3p23d2 | 3s3p23dnl(≤4p) | |||
| 3s23d3 | 3p33d2 | |||
| 3s3p3d3 | ||||
| Sc vi | 51 | 16 | 3s23p4 | 3s23p3nl |
| 3s3p5 | 3s3p4nl (≤5p) | |||
| 3s23p23d2 | 3s23p23dnl (≤4d) | |||
| 3p6 | 3p53d | |||
| 3s3p33d2 | 3s23p3d3 | |||
| Sc v | 51 | 10 | 3s23p5 | 3s23p4nl |
| 3s3p6 | 3s3p5nl (≤4d) | |||
| 3s23p33d2 | 3s23p33dnl (≤4p) | |||
| 3p63d | 3s3p43d2 | |||
| Sc iv | 51 | 3 | 3s23p6 | 3s23p5nl |
| 3s3p63d | 3s3p64s | |||
| 3s23p43d2 | ||||
| Sc iii | 50 | 3s23p6nl | ||
Notes. nR is the number of configurations of the Rydberg series built on the ground configuration of the parent ion, which is limited to shells up to n = 10. In addition nS is the number of core-excited configurations. The notation nl (≤6) (resp. nl (≤5p)) means that shells up to n = 6 (resp. sub-shells up to nl = 5p) are included in the series. Levels with higher subshells lie above the limit.
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