11th Class Chemistry Classification of Elements and Periodicity in Properties

  • question_answer 80)   Choose the correct order of atomic radii of fluorine neon (in pm) out of the options given below and justify your answer. (i) 72, 160                             (ii) 160, 160 (iii) 72, 72                             (iv) 160, 72

    Answer:

      (i) The atomic radius of neon has higher value (i.e., 160) in comparison to fluorine (i.e., 72) because in neon, it is van der Waals' value while in fluorine it is covalent radius.


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