1. Tardigrade
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  3. Chemistry
  4. In which pair the first atom or ion is not larger than the second :-

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Q. In which pair the first atom or ion is not larger than the second :-

Classification of Elements and Periodicity in Properties

Solution:

(i) $N > F$
(ii) $Cl ^{-}> Cl$
(iii) $O < S$
(iv) $Fe ^{+2}> Fe ^{+3}$