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14 June, 18:37

What is the valence electron of manganese?

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Answers (2)
  1. 14 June, 20:36
    0
    25th electron

    Explanation:

    the last electron is the valence electron. Assuming it has equal numbers of protons and electrons, then the 25th electron is the valence.
  2. 14 June, 22:17
    0
    Answer: [Ar] 3d5 4s2

    Explanation:

    Manganese is a transition metal, meaning that it can have more than one valence state. Its electron configuration is [Ar] 3d5 4s2. The two electrons in the 4s orbital are obvious valence electrons, so a valence state of 2 + is possible.
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