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Homework Help: Radioactive decay

  1. Oct 28, 2014 #1
    1. The problem statement, all variables and given/known data
    the variation of nuclear binding energy per nucelon of nuclei P , Q , R and S are shown.
    Which process most likely to occur?

    the ans is P to Q ... why not S to R ?

    P to Q and S to R involve formation of unstable nucleus to more stable nucleus....

    2. Relevant equations

    3. The attempt at a solution

    Attached Files:

  2. jcsd
  3. Oct 28, 2014 #2
    1. Radioactive decay is the process fission. What will this do with the number of nucleons?
    Your answer to this should tell you which way any likely reaction would go, either:
    • S ##\rightarrow## R and Q ##\rightarrow## P.
    • S ##\leftarrow## R and Q ##\leftarrow## P.
    2. To achieve a more stable atom, that is a resulting atom with a higher binding energy, which way will the respective reactions go?

    As soon as you know the answer to these two conditions, only one possible option will remain :)...

    Last edited: Oct 28, 2014
  4. Oct 29, 2014 #3
    To achieve more stable atom either p to q or r to s will occur....
  5. Oct 29, 2014 #4
    Buy why the ans is p to q ?
  6. Oct 29, 2014 #5
    I think you need to read my previous reply a bit more careful ;)..

    Both 1. and 2. Has to be fulfilled.. Also, your statement about stability, are both correct? Remember, higher binding energy ##\rightarrow## more stable.
  7. Oct 29, 2014 #6
    Do the problem actually mentions "radioactive decay"?
    How is a decay in which the number of nucleons increases?
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