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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2005

  • question_answer
    Among \[N{{a}^{+}},Na,Mg\] and \[M{{g}^{2+}}\], the largest particle is:

    A)  \[M{{g}^{2+}}\]

    B)  \[Mg\]

    C)  \[Na\]

    D)  \[N{{a}^{+}}\]

    Correct Answer: C

    Solution :

    Reason being, as we move m period atomic radii decreases from left to right due to increase of effective nuclear charge \[\therefore \]\[Na\] is larger in size then \[Mg\] and a neutral atom is larger than its positive ion.


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