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Homework Help: Introductory nuclear physics

  1. Oct 24, 2005 #1
    Hi.

    Can anybody help me with this exercise in Introductory Nuclear Physics:

    One of the magic numbers for nuclei is 28. How many stable isotopes exist with N = 28. (N being the number of neutrons)

    I have no idea on how to solve this.

    Thanks.
     
  2. jcsd
  3. Oct 24, 2005 #2

    Andrew Mason

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    Science Advisor
    Homework Helper

    I think you are just supposed to look up various possibilities and see if they are stable.

    Start with Z a low number <28 and go to Z a high number > 28 and look up the stable isotopes of each to see if the isotope with N=28 is stable.

    AM
     
  4. Oct 24, 2005 #3
    Ok, thanks. That's a pretty stupid exercise. I can't believe it was on last years exam.
     
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