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Which one of the following groupings rep...

Which one of the following groupings represents a collection of isoelectronic species

A

`Na^(+),Ca^(2+),Mg^(2+)`

B

`N^(3-),F^(-) , Na^(+)`

C

`Be,Al^(3+),Cl^(-)`

D

`Ca^(2+),Cs^(+), Br`.

Text Solution

Verified by Experts

The correct Answer is:
B
Isoelectronic species have same number of electrons , `N^(3-), F^(-)` and `Na^(+)` all have 10 electrons.
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