A) \[M{{g}^{2+}}\]
B) \[N{{a}^{+}}\]
C) \[{{O}^{2-}}\]
D) \[{{F}^{-}}\]
Correct Answer: A
Solution :
All the ions are isoelectronic, so size depends on the number of protons (size is inversely related to number of protons). \[M{{g}^{+2}}\] has more number of protons compared to all the other ions. Hence,\[M{{g}^{+2}}\]is the smallest ion.You need to login to perform this action.
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