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EAMCET Medical EAMCET Medical Solved Paper-2005

  • question_answer
    Identify the correct order in which the ionic radius of the following ions increases: (i) \[{{F}^{-}}\]                                   (ii) \[N{{a}^{+}}\]    (iii) \[{{N}^{3-}}\]

    A)  III, I, II                                 

    B)  I, II, III

    C)  II, III, I                                 

    D)  II, I, III

    Correct Answer: D

    Solution :

                     These are all isoelectronic species. Among isoelectronic species, size increases with decrease in nuclear .charge. Hence the correct order of size is: \[N{{a}^{+}}<{{F}^{-}}<{{N}^{3-}}\]


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