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Alpha Emission

  1. Apr 16, 2005 #1
    Here I have a problem:

    A 232/92 Uranium nucleus emits an alpha particle with kinetic energy=5.32MeV. What is the final nucleus and what is the approximate mass(in units) of the final atom.

    I can write the equation for the reaction, this will give 4/2 He and 228/90 Th. If the alpha particle has KE=5.32MeV then is this the energy emitted in the reaction? If this is then I can obtain the change in mass. Is this correct? Any help is welcomed, thx. Joe
  2. jcsd
  3. Apr 16, 2005 #2


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    It is almost correct. The total energy "emited" is the kinetic energy of the alpha particle + its mass energy (mc²).
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