JEE Main Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesJEE Main

The correct order of increasing atomic radii is [AMU 2003]

Answer: (D)

Solution

Atomic size would normally increase steadily down group 13, but Ga (following the series) experiences poor shielding by its -electrons, giving it a higher effective nuclear

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Question ID VK-138286