Build your practice set

Find exactly what you need to practice.

Search across chemistry topics, concepts, chapters, and questions.

Viewing Shared Question View All Feed

Periodic Table Atomic Radius Trend

1

Choose the best answer

Gallium has a slightly smaller atomic radius than aluminium mainly because of:

Verified Answer & Explanation⌄

Correct Answer: B) Poor shielding by intervening 3d-electrons

Concept Explanation

Poor shielding by 3d-electrons increases the effective nuclear charge in Ga and pulls its outer electrons closer.

Topic: Atomic Radius TrendPractice more Atomic Radius Trend MCQs →