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Is the condensed (noble has core) configuration of Ag.....[Kr] 4d^10,5s^1??

  • chem -

    Yes.

  • chem -

    why would it not be [Kr] 5s^2,4d^9

  • chem -

    Half-filled as well as completely filled, give
    -higher stability (high stability is achieved when the d orbital is filled or half-filled, while half-filling the s orbital); and
    -lower energy to the atom (there is greater electron-electron repulsion if s orbital is filled when one electron from s orbital can be transferred to the unoccupied 3d orbital)

    An example of half-filled is Cr, which has a noble gas core config of [Ar]3d5 4s1.

    Hope this helps~ :)

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