A) \[{{F}^{-}}\]
B) \[C{{a}^{2+}}\]
C) \[{{O}^{2-}}\]
D) \[M{{g}^{2+}}\]
Correct Answer: B
Solution :
\[C{{a}^{2+}}\]has the electronic configuration 2, 8, 8 but \[M{{g}^{2+}},{{O}^{2-}}\] and \[{{F}^{-}}\]are all isoelectronic with the configuration 2, 8.You need to login to perform this action.
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