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

  • question_answer The smallest among the following ions is [JIPMER 1999]

    A) \[N{{a}^{+}}\]

    B) \[M{{g}^{+2}}\]

    C) \[B{{a}^{2+}}\]

    D) \[A{{l}^{3+}}\]

    Correct Answer: D

    Solution :

      The size of an species decreases with increasing nuclear charge because the attraction for the electrons increases. Thus \[A{{l}^{3+}}\]is smaller in size.

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