12th Class Physics Nuclear Physics And Radioactivity

  • question_answer 13)
    The radionuclide  decays according to The maximum energy of the emitted positron is 0-960 MeV. Given the mass values : Calculate Q and compare it with the maximum energy of the positron emitted.  

    Answer:

    The equation of the decay process is    Here stands for the nuclear mass of the element or particle. In order to express the Q value in terms of the atomic masses,  mass has to be subtracted from atomic mass of and  mass has to be subtracted from atomic mass of (Because their atoms contain outside electrons). Therefore, in terms of the atomic mass and      This energy is comparable to actual energy released in the decay process.  


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