AIPMT MAINS2010Chemistry-Periodic Table
AIPMT MAINS 2010 Chemistry Trends in Atomic Radii MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is
A
Mg < Ca < Cl < P
B
Cl < P < Mg < Ca
C
P < Cl < Ca < Mg
D
Ca < Mg < P < Cl
Correct Answer
Option B
Detailed Explanation
Atomic radius increases down a group and decreases across a period. Thus, the order is Cl < P < Mg < Ca.
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