Which one of the following pairs of ions have the same elect... | CHEMISTRY - ELECTRONIC CONFIGURATIONS OF ELEMENTS AND THE PERIODIC TABLE | SolveeIt | Solveeit

Today, August 18

Question

Which one of the following pairs of ions have the same electroincconfiguration ?

A

Cr³⁺, Fe³⁺

B

Fe³⁺, Mn²⁺

C

Fe³⁺, Co³⁺

D

Sc³⁺, Cr³⁺

Answer

Fe³⁺, Mn²⁺

Explanation

Solution

Fe⁺³ ŗ [Ar] 4sŗ 3d⁵

Mn²⁺ ŗ [Ar] 4sŗ 3d⁵