Which of the following pairs of ions have the same eletronic configuration ?

Options

A. `Cr^(3+),Fe^(3+)`
B. `Fe^(3+),Mn^(2+)`
C. `Fe^(3+),Co^(3+)`
D. `Se^(3+),Cr^(3+)`

Answer

B

Explanation

`Fe^(3+)` and `Mn^(2+)` have same electronic configuration.
Hence b is the correct answer.