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

  • question_answer
    When a radioactive element emits an electron the daughter element formed will have [EAMCET 1988; MP PET 1994]

    A)                 Mass number one unit less

    B)                 Atomic number one unit less

    C)                 Mass number one unit more

    D)                 Atomic number one unit more

    Correct Answer: D

    Solution :

              \[_{Z}{{A}^{m}}{{\to }_{Z+1}}{{B}^{m}}{{+}_{-1}}{{e}^{0}}\]


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