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Which of the following is iso-electronic...

Which of the following is iso-electronic with neon-

A

`O^(2-)`

B

`F^(+)`

C

`Mg`

D

`Na`

Text Solution

Verified by Experts

The correct Answer is:
A
`R=R_(0)A^(1//3)=1.33xx10^(-13)xx(64)^(1//3)cm`
`=5.32xx10^(-13)xx(64)^(1//3)cm`
`because 1fm = 10^(-15)m~~5fm`
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