Filling the gap after EC

  1. Is it possible that an electron of the 2s orbit fills the gap in 1s after electron capture?

    i believe no and it has something to do with the quantum-numbers but i cant find a conclusive explanation. or maybe i am totally wrong.
  2. jcsd
  3. Hint : What does Aufbau principle and Hund's Rule of maximum multiplicity state ? And please use the words- subshells and orbitals instead of orbits !!

    Edit: Need to be moved to chemistry section..
    Last edited: Feb 5, 2013
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