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

  • question_answer
    If uranium (mass no. 238 and atomic no. 92) emits \[\alpha \]-particle, the product has mass number and atomic number [CPMT 1984, 90, 93, 94; MNR 1991; IIT 1981]

    A)                 234,  90

    B)                 236,  92

    C)                 238,  90

    D)                 236,  90

    Correct Answer: A

    Solution :

              \[_{92}{{U}^{238}}\to {{\,}_{90}}T{{h}^{\text{234}}}+{{\,}_{2}}H{{e}^{4}}\]


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