Which among the following species have the same number of electrons in its outermost as well as penultimate shell [DCE 2004]

Which among the following species have the same number of electrons in

1.	Which among the following species have the same number of electrons in its outermost as well as penultimate shell [DCE 2004]
A.	\[M{{g}^{2+}}\]
B.	\[{{O}^{2-}}\]
C.	\[{{F}^{-}}\]
D.	\[C{{a}^{2+}}\]
Answer» E.

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Which among the following species have the same number of electrons in its outermost as well as penultimate shell [DCE 2004]

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