JEE Main 2019 — Classification of Elements and Periodicity in Properties Question with Solution
JEE Main 2019 (12 Jan Shift 2)
Question
The correct order of atomic radii is:
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
As the number of electrons are increased it increases the radius of the element. As the number of protons are increased the radius is decreased.
As we can see:
Radius of :
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This is a previous-year question from JEE Main 2019, covering the Classification of Elements and Periodicity in Properties chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.