Answers are grounded in this paper and cite their sources.
Energy levels are presented for Ni XX and Cu XXI of the fluorine isoelectronic sequence. Behaviour of the energy structure of Fe XVIII through Zn XXII, Ge XXIV and Se XXVI was observed along the isoelectronic sequence. The spectra were obtained from laser-produced plasmas.
No takes yet. Share an insight, caveat, or question.
Бойко et al. (1979) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: