Manipal Medical Manipal Medical Solved Paper-2000

  • question_answer
    What is the respective number of\[\alpha \]and\[\beta -\]particles emitted in the following radioactive decay? \[_{90}{{X}^{200}}{{\xrightarrow[{}]{{}}}_{80}}{{X}^{168}}\]

    A)  \[8\alpha ,8\beta \]

    B)  \[8\alpha ,6\beta \]

    C)  \[6\alpha ,6\beta \]

    D)  \[6\alpha ,8\beta \]

    Correct Answer: B

    Solution :

     As it is clear that the emission of\[\alpha \]and\[\beta -\]particles can be shown by the relation, \[_{Z}{{X}^{A}}{{\xrightarrow[{}]{-\alpha }}_{Z-2}}{{X}^{A-4}}\] and  \[_{Z}{{X}^{A}}{{\xrightarrow[{}]{-\beta }}_{Z+1}}{{X}^{A}}\] Hence, for a radioactive decay\[8\alpha \]and \[6\beta -\] particles would be emitted.


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