RAJASTHAN ­ PET Rajasthan PET Solved Paper-2007

  • question_answer
    On comparison of S and\[S\]the\[{{S}^{2-}}\]has

    A)  large radius and large size

    B)  small radius and large size

    C)  large radius and small size

    D)  small radius and small size

    Correct Answer: A

    Solution :

     \[{{S}^{2-}}\]forms on adding two electron in sulphur atom, so that the effective nuclear charge decreases and the electron orbital increases. Therefore, the size and radius of\[{{S}^{2-}}\]is greater than the sulphur atom.


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