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JEE Main & Advanced Sample Paper JEE Main Sample Paper-17

  • question_answer
    In nuclear reactions\[A\xrightarrow{-\beta }B\xrightarrow{-\beta }C\xrightarrow{-\alpha }D,A\]and D are related as

    A)  isotopes            

    B)  the same nuclei

    C)  isoelectronics                  

    D)  isomers

    Correct Answer: A

    Solution :

     Let mass number of A be\[x\]and its atomic number be y. Then for B, C and Z), respective quantities are \[(x+y+1),(x,y+2)\] and \[(x+4,y).\] For A and D, atomic number of protons is same but numbers of neutrons are different, hence they are isotopes.


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