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Term Symbols

  1. Jan 2, 2009 #1
    Atoms have Terms Symbols such as S (L=0), P (L=1), D (L=2), etc...In case of molecules, L no longer exists as other symbols are uesd: which ones?
  2. jcsd
  3. Jan 2, 2009 #2


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    I often see: Sigma [itex]\Sigma[/itex], Pi [itex]\Pi[/itex], etc. Often with a subscript g or u. The meaning are given in various books. For example, Landau and Lifgarbagez "Quantum Mechanics".
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