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SSC CGL
mediumQ. No. 14947-which-of-the-following-elements-has-the-largest-atomic-radius

Which of the following elements has the largest atomic radius?

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This SSC CGL Chemistry question asks: “Which of the following elements has the largest atomic radius?” The correct answer is Cs. Atomic radius increases down a group. Cs is at the bottom of Group 1 so has largest atomic radius among alkali metals. A reliable answer begins by identifying whether the question concerns atomic structure, chemical bonding, periodicity, stoichiometry, acids and bases, redox chemistry, electrochemistry, organic nomenclature, metallurgy or everyday materials. Periodic trends such as atomic size, ionisation energy and electronegativity depend on effective nuclear charge and shielding, so exceptions should be treated carefully.

ALi
BNa
CK
DCs
Correct Answer: CsYour Answer: D

Explanation

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

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FAQ

SSC CGL Chemistry FAQs

Common questions and clear answers for this topic.

How many chemistry questions typically appear in the SSC CGL exam?

Chemistry usually contributes a handful of questions within the General Awareness section, generally covering basic concepts rather than calculation-heavy problems.

Which chemistry topics are most important for SSC CGL preparation?

Atomic structure, periodic table trends, acids-bases-salts, metals and non-metals, and carbon compounds are the areas that appear most consistently across past papers.

Is NCERT chemistry enough to prepare for SSC CGL?

NCERT textbooks from classes 9 and 10 cover most of the conceptual base needed, though supplementing with general knowledge about everyday chemical compounds helps too.

What is the best way to remember chemical reactions and formulas for SSC CGL?

Linking reactions to real-world examples, like rusting or antacids, makes them easier to recall than memorizing formulas in isolation.

Does the SSC CGL chemistry syllabus overlap with the school board syllabus?

Yes, a large part of the syllabus mirrors class 9 and 10 science, making school-level revision a practical starting point.

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