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MDCAT Chemistry Past Paper 2023 #Atomic Structure #Electronic Configuration

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The valence shell electronic configuration of an element is 4s² 4p¹. To which group does the element belong? (MDCAT 2023)

Verified Answer & Explanation⌄

Correct Answer: D) IIIA

Concept Explanation

A valence-shell configuration ns²np¹ corresponds to Group 13, traditionally called Group IIIA. Thus 4s²4p¹ belongs to IIIA.

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