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Sindh MDCAT 2021 Chemistry #Magnetic Properties #Transition Elements

1

Choose the best answer

The number of unpaired electrons in ferrous ion is:

Verified Answer & Explanation⌄

Correct Answer: C) 4

Concept Explanation

Fe has configuration [Ar]3d⁶4s². Fe²⁺ loses the two 4s electrons, giving [Ar]3d⁶, which has four unpaired electrons.

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