We are asked to determine the electron configuration of Mn 3+.
First, let us get the ground-state electron configuration of Mn.
Ground-state means that Carbon is in its lowest energy form (not in excited state). Carbon also has no charge (neutral element) which means that no electrons are removed or added in the atom.
Neutral element: Atomic number = # protons = # of electrons
▪ Atomic number = 25
▪ # of electrons = 25 e-
What is the electronic configuration of Mn 3+?
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