A) \[C\]
B) \[{{F}^{-}}\]
C) \[{{O}^{-2}}\]
D) \[A{{l}^{+3}}\]
Correct Answer: C
Solution :
\[_{8}^{16}{{O}^{-\,-}}\] have more electrons than neutron \[p=8,\,\,e=10,\,\,n=8\].
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