11 grade chemistry others

What is the electronic configuration for manganese?

A. 1s² 2s² 2p⁶ 3s² 3p⁵

B. [Ar] 4s¹

C. 1s² 2s² 2p⁶ 3s² 3p⁵ 4s² 3d⁵

D. 1s² 2s² 3p¹

Aniket Singh

10 Months agoGrade

1 Answer

Askiitians Tutor Team

Approved Tutor Answer10 Months ago

The electronic configuration for manganese, which has an atomic number of 25, is represented as follows:

Correct Answer

The correct option is:

C. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁵

Explanation

Manganese is located in the d-block of the periodic table, and its configuration reflects the filling of the 4s and 3d orbitals. Here’s a breakdown of the configuration:

1s²: 2 electrons in the first energy level
2s² 2p⁶: 8 electrons in the second energy level
3s² 3p⁶: 8 electrons in the third energy level
4s²: 2 electrons in the fourth energy level
3d⁵: 5 electrons in the 3d subshell

This configuration shows that manganese has a total of 25 electrons, which corresponds to its position in the periodic table.