Question

The size of the following species increases in the order
A. `Mg^(2+)ltNa^(+)ltF^(-)ltAl`
B. `F^(-)ltAlltNa^(+)gtMg^(2+)`
C. `AlltMg^(2+)ltF^(-)ltNa^(+)`
D. `Na^(+)ltAlltF^(-)ltMg^(2+)`

Answer 1

Correct Answer - A
`Mg^(2+)ltNa^(+)ltF^(-)ltAl`
`F^(-)` has bigger size than `Mg^(2+)` and `Na^(+)` due to small nuclear charge.