Classification Of Elements And Periodicity In Properties Question 138
Question: Which is correct in the following-
Options:
A) Radius of Cl atoms is $ 0.99,\overset{o}{\mathop{A}},, $ while that of $ Cl^{+} $ ion is $ 1.54,\overset{o}{\mathop{A}}, $
B) Radius of Cl atoms is $ 0.99,\overset{o}{\mathop{A}},, $ while that of Na atom is $ 1.54,\overset{o}{\mathop{A}}, $
C) Radius of Cl atoms is $ 0.99,\overset{o}{\mathop{A}},, $ while that of $ C{{l}^{-}} $ ion is $ 0.81,\overset{o}{\mathop{A}}, $
D) Radius of Na atoms is $ 1.02,\overset{o}{\mathop{A}},, $ while that of $ N{{a}^{+}} $ ion is $ 0.97,\overset{o}{\mathop{A}}, $
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Answer:
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.
BETA
