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10 July, 09:50

What is the electron configuration of an Fe2 + ion?

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  1. 10 July, 13:27
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    1s2 2s2 2p6 3s2 3p6 3d6

    Explanation:

    We are required to determine the electron configuration of Fe²⁺

    We need to know that;

    Atomic number of Iron (Fe) is 26

    Therefore, electron configuration of Iron (Fe) atom is [Ar] 3d64s2 or 1s2 2s2 2p6 3s2 3p6 4s2 3d6 Fe²⁺ is a cation that is formed when a an atom of Fe loses two electrons Therefore;

    Fe²⁺ will have 24 electrons

    Hence, the atomic configuration of Fe²⁺ is given by 1s2 2s2 2p6 3s2 3p6 3d6 since the two electrons are removed from the 4s2.

    Thus, electron configuration of Fe²⁺ is 1s2 2s2 2p6 3s2 3p6 3d6
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