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JEE Main & Advanced Physics Nuclear Physics And Radioactivity Question Bank Radioactivity

  • question_answer
    In the uranium radioactive series, the initial nucleus is \[_{92}{{U}^{238}}\]and the final nucleus is \[_{82}P{{b}^{206}}\]. When the uranium nucleus decays to lead, the number of \[\alpha -\]particles emitted will be                                   [MP PMT 1999]

    A)            1    

    B)            2

    C)            4    

    D)            8

    Correct Answer: D

    Solution :

               \[{{n}_{\alpha }}=\frac{A-A'}{4}=\frac{238-206}{4}=8\]


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