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Lanthanide
Actinide
Superactinide
Ion of Niobium, Z=41, I.P.=960900 cm-1
References:
Phys. Scr. - 2014 - Vol. 89 - P. 125404
Phys. Scr. - 2013 - Vol. 88 - P. 03501.
J. Phys. B - 1974 - Vol. 7 - P. 2121-2133..
Ekberg J. et al. // JOSA - 1972 - Vol. 62 - P. 1139-1142..
Electronic structure
Found 65 levels. [view]Found 45 transitions. [view]