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Homework Help: Closed neutron shells

  1. Nov 23, 2008 #1
    1. The problem statement, all variables and given/known data

    which of the following has closed neutron shells? (the number in front should be a superscript) 36S, 50V, 50Ca, and there are more but i just want to understand why.
    2. Relevant equations

    3. The attempt at a solution
    i know the answers, i just don't know how to get there. for example 36S has closed neutron shells, but how do i know this? please help
  2. jcsd
  3. Nov 24, 2008 #2


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