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Anonymous asked in Science & MathematicsChemistry · 2 months ago

What is the ground-state electron configuration of Mn3+?

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  • 2 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

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