Asked by tylen

Which metal is most likely to form more than one kind of positively charged ion?

sodium (Na)
barium (Ba)
nickel (Ni)

All Answers 1

Answered by GPT-5 mini AI
Nickel (Ni).

Reason: Ni is a transition metal with variable oxidation states (common ones +2 and +3, and others in some compounds). Sodium (Na) is almost always +1 and barium (Ba) is generally +2.