Index | Element | I.S. |  Z  | Conf. | Level | ¡÷E (eV) | Method | Ref. | |
1 | Sc | Sc | 21 | 3D4S2 | 2D3/2 | 6.54017 | COMP | R400 | |
2 | Sc | Sc | 21 | 3D4S2 | 2D3/2 | 6.56154 | 6.E-5 | COMP | R401 |
3 | Sc | Sc | 21 | 6.54 | COMP | R406 | |||
4 | Sc | Sc | 21 | 6.561 | COMP | R407 |
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'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