JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties Question Bank Atomic and lonic radii

  • question_answer The decreasing order of size of isoelectronic series \[{{K}^{+}},\,C{{a}^{2+}},\,C{{l}^{-}}\] and \[{{S}^{2-}}\] is [Roorkee 1995]

    A) \[{{K}^{+}}>C{{a}^{2+}}>{{S}^{2-}}>C{{l}^{-}}\]

    B) \[{{K}^{+}}>C{{a}^{2+}}>C{{l}^{-}}>{{S}^{2-}}\]

    C) \[C{{a}^{2+}}>{{K}^{+}}>C{{l}^{-}}>{{S}^{2-}}\]

    D) \[{{S}^{2-}}>C{{l}^{-}}>{{K}^{+}}>C{{a}^{2+}}\]

    Correct Answer: D

    Solution :

    \[{{S}^{2-}}>C{{l}^{-}}>{{K}^{+}}>C{{a}^{2+}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner