Electron Configuration of Molybdenum?

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TeddyGrahams asked:


What is the complete electron configuration of Mo 3+ ?

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One Response to “Electron Configuration of Molybdenum?”

  1. jamesgowdy1988 Says:
    November 7th, 2008 at 10:27 am

    QUERY: What is the ground state electronic configuration of Mo 3+?

    WORKING: Molybdernum, Mo has atomic number 42. Hence 42-3=39 electrons or the equivalent of Yttrium, Y.

    So we pass [He] = 1s2 (37 left)
    We pass [Ne] = [He] 2s2, 2p6 (29 left)
    We pass [Ar] = [Ne] 3s2, 3p6 (21 left)
    We pass [Kr] = [Ar] 4s2, 3d10, 4p6 (3 left)

    ANSWER: The configuration of Mo3+ is therefore…
    …in shorthand: [Kr] 5s2, 4d1
    …or in full: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2, 4d1
    …or in principle shell summary: 2.8.18.9.2

    Hope that helps!

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