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

  • question_answer
    During a negative \[\beta \]-decay          [MNR 1990; IIT 1985]

    A)                 An atomic electron is ejected

    B)                 An electron which is already present within the nucleus is ejected

    C)                 A neutron in the nucleus decays emitting an electron

    D)                 A part of the binding energy of the nucleus is converted into an electron

    Correct Answer: C

    Solution :

              b-decay occurs by the nuclear change \[n\to p{{+}_{-1}}{{e}^{0}}\].


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