Question

The atomic number of manganese (Mn) is 25. What's the electron configuration for manganese?
A. [Ar] 3s5 4p2
B. [Ne] 3d7
C. [Ne] 452 3p5
D. [Ar] 3d5 4s2

Answer 1

Answer:

$\boxed{\sf D. \ [Ar] \ 3d5 \ 4s2}$

Explanation:

Manganese is a group 7 transition metal with an electronic configuration of [Ar] 3d5 4s2.

Answer 2

D . [Ar] 3d5 4s2

Hope this helps