Question

Which has maimum number fo unpaired elecron ?
A. ` Mg^(2+)`
B. `Ti^(3+)`
C. `V^(3+)`
D. `Fe^(2+)`

Answer 1

Correct Answer - D
`Fe^(2+)` has four unparired electron `(1s^2, 2s^(2) 2p^6 , 3s^2 3p^6 3d^6)`.