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Which one of the following sets of ions ...

Which one of the following sets of ions represents the collection of isoelectronic species?
(Atomic numbers : F = 9, CI = 17, Na = 11, Mg = 12,Al = 13, K = 19, Ca = 20, Sc =21)

A

`K^(+) , Ca^(2+),Sc^(3+),Cl^(-)`

B

`Na^(+),Ca^(2+),Sc^(3+),F^(-)`

C

`K^(+),Cl^(-),Mg^(2+),Sc^(3+)`

D

`Na^(+),Mg^(2+),Al^(3+),Cl^(-)`

Text Solution

Verified by Experts

The correct Answer is:
A
Species which have same no. of electrons are said to be isoelectronic species.
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