The successive ionization energies for an unknown element are:
IE1 = 896 kJ/molIE2 = 1752 kJ/molIE3 = 14,807 kJ/molIE4 = 17,948 kJ/mol
To which family in the periodic table does the unknown element most likely belong?
Mn− (g) + e− → 2 Mn2− (g)
Mn2+ (g) → Mn3+ (g) + e−
Mn2− (g) + e− → 2 Mn3− (g)
Mn (g) → Mn3+ (g) + 3 e−
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