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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
    The disintegration of an isotope of sodium. \[_{11}N{{a}^{24}}{{\to }_{12}}M{{g}^{24}}{{+}_{-1}}{{e}^{0}}\] shown is due to [AMU (Engg.) 2000]

    A)                 The emission of b-radiation

    B)                 The formation of a stable nuclide

    C)                 The fall in the neutron : proton ratio

    D)                 None of these

    Correct Answer: A

    Solution :

                    An emission of b-particle means that atomic number increases by 1 but mass number remains unaffected and neutron- proton ratio decreases.


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