Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Conceptual question - radioactive nucleus stability

  1. Aug 26, 2011 #1
    1. The problem statement, all variables and given/known data

    A [itex]^{238}_{92} U[/itex] nucleus can catch a neutron with small kinetical energy. Then we'll get a [itex]^{239}_{92} U[/itex] nucleus. This nucleus has too many neutrons compared to the number of protons to be stable. How can the nucleus achieve a better balance between neutrons and protons without fissioning?

    2. Relevant equations
    3. The attempt at a solution

    send out [itex]\alpha[/itex]-particle(s)? That's not considered fission, right?
  2. jcsd
  3. Aug 26, 2011 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook