Question

Arrange the anions in order of increasing radius; $Cl^{-}$, $Br^{-}$, $N^{3-}$, $O^{2-}$. Give reason for your answer.

Answer 1

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Answer 2

Answer:

radius?

radius?In such a series, size decreases as the nuclear charge (atomic number) of the ion increases. The atomic numbers of the ions are S (16), Cl (17), K (19), and Ca (20). Thus, the ions decrease in size in the order: S2- > Cl– > K+ > Ca2+.