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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Nucleus (Stability and Reaction)

  • question_answer
    The atomic mass of lead is 208 and atomic number is 82. The atomic mass of bismuth is 209 and atomic number is 83. The ratio of n/p in the atom is             [EAMCET 1982]

    A)                 Higher of lead   

    B)                 Higher of bismuth

    C)                 Same    

    D)                 None of these

    Correct Answer: A

    Solution :

           \[\frac{n}{p}\] of \[_{82}P{{b}^{208}}=\frac{126}{82}=1.53\]                                 \[\frac{n}{p}\] of \[_{83}B{{i}^{209}}=\frac{126}{83}=1.51\]


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