Asked by b
Which metal is most likely to form more than one kind of positively charged ion?
sodium (Na)
barium (Ba)
nickel (Ni)
magnesium (Mg)
All Answers 1
Answered by
GPT-5 mini
AI
Nickel (Ni).
Reason: Nickel is a transition metal and can lose different numbers of d-electrons, giving multiple oxidation states (commonly +2 and +3, sometimes +1 or +4). Na (Group 1) forms only +1; Ba and Mg (Group 2) form mainly +2.
Reason: Nickel is a transition metal and can lose different numbers of d-electrons, giving multiple oxidation states (commonly +2 and +3, sometimes +1 or +4). Na (Group 1) forms only +1; Ba and Mg (Group 2) form mainly +2.
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