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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Rate of decay and Half-life

  • question_answer
    What kind of radioactive decay does not lead to the formation of a daughter nucleus that is an isobar of the parent nucleus                                                [JIPMER 1999]

    A)                 a-rays  

    B)                 b-rays

    C)                 Positron              

    D)                 Electron capture

    Correct Answer: A

    Solution :

              When a radioactive element emits an a-particle, the atomic no. of the resulting nuclide decreases by two units and atomic mass decreases by 4 units.


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