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A magic number is the name given to certain numbers of protons or neutrons that have a high correlation to stability in nuclei.

Magic # of protons: 2,8,20,28,50,82
Magic # of neutrons: 2,8,20,38,50,82,126, 184

Using general trends, predict the stability of the following nuclei.


(I figured B would be stable because it falls under the magic numbers list. Also I think C would be radioactive because it does not seem to fit with the others)

  • chemistry -

    just a guess but would all but C be stable?

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