which among the following species has th...

which among the following species has the same number of electrons in its outermost as well as penultimate shell ?

A

`Mg^(2+)`

B

`O^(2-)`

C

`F^(-)`

D

`Ca^(2+)`

Verified by Experts

The correct Answer is:

D

`Ca^(2+)` has arragement (2,8,8).

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