Which of the following pairs of ions have the same electroni... | CHEMISTRY - GENERAL PROPERTIES OF THE TRANSITION ELEMENTS (D-BLOCK) | SolveeIt | Solveeit

Today, August 18

Question

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

A

$Cu^{2 +},Cr^{2 +}$

B

$Fe^{3 +},Mn^{2 +}$

C

$Co^{3 +},Ni^{3 +}$

D

$Sc^{3 +},Cr^{3 +}$

Answer

$Fe^{3 +},Mn^{2 +}$

Explanation

Solution

$Fe^{3 +}(z = 26) \rightarrow 3d^{5}$

$Mn^{2 +}(z = 25) \rightarrow 3d^{5}$