| Index | Element | Z | I.S. | ¡÷E | Method | Ref. | Conf. | Level | |
| 1 | Cr | 24 | O | 55812.1 | THR | R50 | 2s22p4 | 3 P0 | |
| 2 | Cr | 24 | O | 57680 | 50.0 | EXP | R479 | 2s22p4 | 3 P0 |
| 3 | Cr | 24 | O | 57917.4 | 50.0 | THR | R50 | 2s22p4 | 3 P1 |
| 4 | Cr | 24 | O | 58150 | 50.0 | COMP | R339 | 2s22p4 | 3 P0 |
| 5 | Cr | 24 | O | 60376 | 50.0 | EXP | R479 | 2s22p4 | 3 P1 |
| 6 | Cr | 24 | O | 60380 | 50.0 | COMP | R339 | 2s22p4 | 3 P1 |
| 7 | Cr | 24 | O | 134980 | 50.0 | EXP | R479 | 2s22p4 | 1 D2 |
| 8 | Cr | 24 | O | 135160 | 50.0 | COMP | R339 | 2s22p4 | 1 D2 |
| 9 | Cr | 24 | O | 135570 | 50.0 | THR | R50 | 2s22p4 | 1 P2 |
| 10 | Cr | 24 | O | 257404 | 50.0 | THR | R50 | 2s22p4 | 1 S0 |
| 11 | Cr | 24 | O | 262970 | 50.0 | EXP | R479 | 2s22p4 | 1 S0 |
| 12 | Cr | 24 | O | 263180 | 50.0 | COMP | R339 | 2s22p4 | 1 S0 |
| 13 | Cr | 24 | O | 813180 | 50.0 | EXP | R479 | 2s2p5 | 3 P2 |
| 14 | Cr | 24 | O | 813600 | 50.0 | COMP | R339 | 2s2p5 | 3 P2 |
| 15 | Cr | 24 | O | 820205 | 50.0 | THR | R50 | 2s2p5 | 3 P2 |
| 16 | Cr | 24 | O | 857690 | 50.0 | EXP | R479 | 2s2p5 | 3 P1 |
| 17 | Cr | 24 | O | 858150 | 50.0 | COMP | R339 | 2s2p5 | 3 P1 |
| 18 | Cr | 24 | O | 863907 | 50.0 | THR | R50 | 2s2p5 | 3 P1 |
| 19 | Cr | 24 | O | 887540 | 50.0 | EXP | R479 | 2s2p5 | 3 P0 |
| 20 | Cr | 24 | O | 887920 | 50.0 | COMP | R339 | 2s2p5 | 3 P0 |
¡¾Close¡¿ Online: 23
Noted that here
'I.S.' ---------- the isoelectronic sequence
'Z' ---------- atomic number
'Conf.' ---------- configuration
'Level' ---------- the notation of energy level
'E' ---------- the value of the energy level
'¡÷E' ---------- error for energy level
'Method' ---------- the method by which the data is produced
'Ref.' ---------- the reference