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UHS MDCAT 2023 Chemistry UHS MDCAT 2023 Past Paper #Atomic Structure #Electronic Configuration

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Which element has the ground state electronic configuration of 1s², 2s², 2p⁶, 3s², 3p⁶? (UHS MDCAT 2023)

Verified Answer & Explanation⌄

Correct Answer: A) Ar

Concept Explanation

The configuration contains 18 electrons. The element with atomic number 18 is argon, Ar.

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