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Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2011

  • question_answer
    The number of beta particles emitted in the radioactive decay series from \[^{238}{{U}_{92}}\] to \[^{206}{{U}_{82}}\] is

    A)  \[10\]                                  

    B)  \[8\]     

    C)  6                                            

    D)  \[2\]

    Correct Answer: C

    Solution :

    Number of \[\alpha \]-particles \[=\frac{238-206}{4}=8\] Number of \[\beta \]-particles \[=2\times \] number of \[\alpha \]-particles - change in atomic number \[\therefore \] Number of \[\beta \]-particles                 \[=2\times 8(-92-82)=16-10=6\]


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