Q. In which one of the following pairs metals have same number of unpaired electrons?

2257 221 The d-and f-Block Elements Report Error

A

Cr , Cu

26%

B

Mn , Zn

21%

C

Sc , Zn

25%

D

Sc, Cu

28%

Solution:

$S c \to [A r] 3 d^{1} 4 s^{2}$

$C u \to [A r] 3 d^{10} 4 s^{1}$