Manganese, with the atomic number 25, is located in group 7B (or group 7) and period 4 of the periodic table. Its electron configuration can be determined by considering its position in the table and the filling order of electrons.
The electron configuration of manganese is [Ar] 3d5 4s2. This indicates that manganese has two electrons in the 4s subshell and five electrons in the 3d subshell, making a total of seven outer electrons.
In terms of its chemical behavior, the five 3d electrons play a crucial role in the element’s ability to form various oxidation states, while the two 4s electrons are also energetically significant in chemical bonding. Therefore, the outer electron configuration of manganese is characterized by a balance of both the 3d and 4s subshells, which allows manganese to exhibit remarkable versatility in its valence electron interactions.