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MediumQ. No. which-of-the-following-elements-has-the-largest-atomic-radius

Which of the following elements has the largest atomic radius?

Last Updated: 26 Jun 2026

ALi

BNa

CK

DCs

Correct Answer: CsYour Answer: D

Explanation

Atomic radius increases down a group. Cs is at the bottom of Group 1 so has largest atomic radius among alkali metals.

Important Notes

Atomic radius decreases across period and increases down a group

SSC CGL Chemistry

SSC CGL

Answer

Cs

Exam Info

Asked in: SSC, Railway, Banking and other competitive exams.
Also asked in: RRB NTPC, CHSL, State PCS and online mock tests.
Topic: SSC CGL Chemistry

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