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Verified Answer & Explanation⌄

Correct Answer: A) [Ar] 3d⁵

Concept Explanation

Fe: [Ar] 3d⁶ 4s² Electrons are removed from 4s before 3d: Fe³⁺ = [Ar] 3d⁵.

Topic: Electronic Configuration of IonsPractice more Electronic Configuration of Ions MCQs →