What is the ground-state electron configuration of Mn3+?
- 冷眼旁觀Lv 72 months ago
The atomic number of Mn is 25, and thus an Mn atom has 25 electrons.
The ground-state electronic configuration of Mn atom is
Mn: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s²
An Mn atom loses two 4s electrons and one 3d electron to become an Mn³⁺ ion. The ground-state electronic configuration of Mn³⁺ ion is:
Mn³⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁴