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24 September, 06:15

What are the four sets of quantum numbers for nickel?

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  1. 24 September, 08:16
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    The quantum numbers for the last valence electron in nickel are (3, 2, 0, - ½).

    The electron configuration of nickel is [Ar]4s²3d⁸

    The last electron added is a 3d electron, so n = 3 and l = 2.

    We construct a table of quantum numbers.

    Element n l mₗ mₛ

    Sc 3 2 2 + ½

    Ti 3 2 1 + ½

    V 3 2 0 + ½

    Cr 3 2 - 1 + ½

    Mn 3 2 - 2 + ½

    Fe 3 2 2 - ½

    Co 3 2 1 - ½

    Ni 3 2 0 - ½

    The quantum numbers for the last electron in nickel are (3, 2, 0, - ½).
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