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Which of the following sets represents i...

Which of the following sets represents isoelectronic species?

A

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

B

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

C

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

D

`Cr^(3+), Fe^(2+), Co^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
A
`K^(+), Ca^(2+), Sc^(3+)` all contain 18 electrons in rest of species are : `Na^(+)(10), F^(-)(10), V^(3+)(20), Cl^(-)(18), Mg^(2+)(10), Cr^(5+)(21), Fe^(2+)(24) and Co^(3+)(24)`.
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