In the rsoelectroruc species, the ionic radii (A) of N3,O2 and F are respectively given by :

  1. A

    1.36,1.40,1.71

  2. B

    1.36,1.71,1.40

  3. C

    1.71,1.40,1.36

  4. D

    1.70,1.36,1.40

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    Solution:

    The ionic radii in the isoelectronic species  (A) of N3,O2 and F respectively provided by 1.71,1.40,1.36 These species all have the same number of electrons in them. The effective nuclear charge rises as the atomic number rises. The nucleus becomes more attractive to the valence electrons. As a result, the ionic radii grow.

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