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Atomic Structure Exceptional Electronic Configurations

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The electronic configuration: [Ar] 3d⁵ 4s¹ represents the ground state of:

Verified Answer & Explanation⌄

Correct Answer: B) Cr

Concept Explanation

Chromium, Z = 24, has the exceptional ground-state configuration: [Ar] 3d⁵ 4s¹ The half-filled 3d subshell provides extra stability.

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