Which of the following statement is correct ?

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Radius of Cl atom is 0.99 Ao , while that of Cl+ ion is o 1.54 Ao

Radius of Cl atom is 0.99 Ao, while that of Na atom is 1.54 Ao

The radius of Cl atom is 0.95 Ao, while that of Cl- ion is 0.81 Ao

Radius of Na atom is 0.95 Ao, while that of Na+ ion is 1.54 Ao

answer is B.

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Detailed Solution

The atomic radius decreases along the period.Cations are always smaller than their parent atom and anions are always larger than their parent atom.

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