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How to deduce the bond energy/distance relation (with grah)?

  1. Feb 27, 2013 #1
  2. jcsd
  3. Feb 27, 2013 #2

    mfb

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    Staff: Mentor

    At small separations, the electron wavefunctions begin to overlap. Due to quantum mechanics (in particular, the Pauli exclusion principle), this requires a lot of energy, and leads to a repulsion. This is hard to evaluate in a general way, so approximations like the Lennard-Jones potential are used.
     
  4. Feb 27, 2013 #3
    Thanks!
     
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