An monoatomic ion that has 18 electrons and a +2 charge — Atomic Structure Chemistry Question
Question
An monoatomic ion that has 18 electrons and a +2 charge
A.
has 16 protons.
B.
has the symbol Ar2+.
C.
has 18 neutrons.
D.✓ Correct
is isoelectronic with Ar.
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