| Index | Element | I.S. | Z | Conf. | Level | ¡÷E (eV) | Method | Ref. | |
| 1 | B | B | 5 | 1S22S22P | 8.2971 | +8.3E-4 | EXP | R11 | |
| 2 | B | B | 5 | 1S22S22P | 8.298 | COMP | R1 | ||
| 3 | B | B | 5 | 2P | 2P1/2 | 8.29803 | 1.5E-05 | COMP | R400 |
| 4 | B | B | 5 | 2P | 2P1/2 | 8.298 | COMP | R325 | |
| 5 | B | B | 5 | 8.296 | COMP | R406 | |||
| 6 | B | B | 5 | 8.298 | COMP | R407 |
¡¾Close¡¿
'I.S.' ---------- the isoelectronic sequence
'Z' ---------- atomic number
'Conf.' ---------- configuration
'Level' ---------- the notation of energy level
'E' ---------- the ionization potential
'¡÷E' ---------- error for ionization potential
'Method' ---------- the method by which the data is produced
'Ref.' ---------- the reference