A) Radius of Cl atoms is \[0.99\,\overset{\text{o}}{\mathop{\text{A}}}\,,\] while that of \[C{{l}^{+}}\] ion is \[1.54\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
B) Radius of Cl atoms is \[0.99\,\overset{\text{o}}{\mathop{\text{A}}}\,,\] while that of Na atom is \[1.54\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
C) Radius of Cl atoms is \[0.99\,\overset{\text{o}}{\mathop{\text{A}}}\,,\]while that of \[C{{l}^{-}}\] ion is \[0.81\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
D) Radius of Na atoms is \[0.99\,\overset{\text{o}}{\mathop{\text{A}}}\,,\] while that of \[N{{a}^{+}}\] ion is \[1.54\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
Correct Answer: B
Solution :
[b] The atomic radius decreases along the period. Also cations are always smaller than their parent atoms and anions are always larger than their parent atom.
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