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JEE Main & Advanced Physics Nuclear Physics And Radioactivity Question Bank Nucleus, Nuclear Reaction

  • question_answer
    The curve of binding energy per nucleon as a function of atomic mass number has a sharp peak for helium nucleus. This implies that helium                                                          [DCE 2004]

    A)            Can easily be broken up

    B)            Is very stable

    C)            Can be used as fissionable material

    D)            Is radioactive

    Correct Answer: B

    Solution :

               The elements high on the B.E. versus mass number plot are very tightly bound and hence, are stable. And the elements those are lower on this plot, are less tightly bound and hence, are unstable. Since helium nucleus shows a peak on this plot so, it is very stable.


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