What Is the Electron Configuration of Manganese?

What Is the Electron Configuration of Manganese?

The electron configuration for manganese is 1s2 2s2 2p6 3s2 3p6 4s2 3d5. It can be shortened to [Ar] 4s2 3d5, where the [Ar] represents argon, the last element in the third row of the periodic table, whose electrons fill every shell prior to the 4s-orbital.

The first number in each grouping represents the energy level. The second number represents the type of orbital. In addition to the s-, p- and d-orbitals, electrons may also be in f-orbitals. The final number in each grouping represents the total number of electrons in each orbital. The only orbital that is not full is the 3d-orbital.