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WB JEE Medical WB JEE Medical Solved Paper-2006

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

    A)  Pb                         

    B)  Sn  

    C)  Si                                           

    D)  C

    Correct Answer: B

    Solution :

                     The ionisation 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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