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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    Which among the following elements have lowest value of\[I{{E}_{1}}\]?

    A) \[Pb\]                                  

    B)        \[Sn\]

    C)        \[Si\]                                    

    D)        \[C\]

    Correct Answer: B

    Solution :

    The ionization energy of Tin \[(Sn)\] is less than that of lead\[(Pb)\]. It is due to the poor shielding of \[d-\]and\[f-\] electron in\[Pb\], due to which it feels greater attraction from nucleus.


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