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Homework Help: Nuclear physics and radio activity

  1. Nov 19, 2008 #1
    One isotope (X) contains an equal number of protons and neutrons. Another isotope (Y) of the same element has twice the number of neutrons as the first isotope does. Determine the ratio rY/rX of the nuclear radii of the isotopes.
  2. jcsd
  3. Nov 19, 2008 #2


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    Staff: Mentor

    Welcome to the PF. Per the PF Rules (see the "Rules" link at the top of the page), you must show us your attempt at a solution before we can offer any tutorial help. How would you approach this problem? What are the relevant equations and concepts?
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