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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Causes of radioactivity and Group displacement law

  • question_answer
    \[_{13}^{27}Al\] is a stable isotope. \[_{13}^{29}Al\] is expected to disintegrate by [IIT 1996; UPSEAT 2001]

    A)                 \[\alpha \]-emission      

    B)                 \[\beta \]-emission

    C)                 Positron emission           

    D)                 Proton emission

    Correct Answer: B

    Solution :

              The \[\frac{n}{p}\] ratio of \[_{13}A{{l}^{29}}\]places it above the belt of stability and thus it emits \[\beta \]-particles.


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