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Dumb question about electronic structure

  1. Dec 30, 2006 #1
    I want to ask which type of the following would have a greater repulsion
    electrons with parallel spin, electrons with opposite spin.
    or it's just the same?
  2. jcsd
  3. Dec 30, 2006 #2
    Seems equivalent to asking what happens when two bar magnets are brought together?
  4. Dec 31, 2006 #3
    Hi christwwt,

    Electrons with parallel spin would experience greater repulsion than those with opposite spin. This is also the reason why electrons occupying the atomic subshells(1s,2s,2p,3s etc) are always paired in opposite spins.
  5. Dec 31, 2006 #4
    is that mean 2 orbitals with one occupied by 2 electrons and other with electron occupied singly,
    and 2 orbitals both single occupied.
    The repulsion between the latter one is greater than the former one?
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