Potassium (chem)

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Confirm that the experimentally observed electronic configuration of K, 1s22s22p63s23p64s1 is energetically more stable than the configuration 1s22s22p63s23p63d1.

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i know that it is energetically more stable for the electron to occupy the 4s orbital than the 3d.. but why?

  • Potassium (chem) -

    Retyped and answered above.

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