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Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2004

  • question_answer
    A nucleus \[_{z}^{A}X\] emits an a-particle. The resultant  nucleus emits \[a\text{ }\!\!\beta\!\!\text{ -}\]particle. The respective atomic and mass numbers of the final nucleus will be

    A)  Z - 3, A - 4                          

    B)  Z -1, A - 4

    C)  Z - 2, A - 4                          

    D)  Z, A - 2

    Correct Answer: B

    Solution :

    According to the question\[_{Z}^{A}X\xrightarrow{-\alpha }_{Z-2}^{A-4}\xrightarrow{-\beta }_{Z-1}^{A-4}N\] So, atomic and mass number of final nucleus N is \[Z-1\] and \[A-4\] respectively.


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