What Is the Electron Configuration of a Ground-State Fe²⁺ Ion

question 20

Multiple Choice

What is the electron configuration of a ground-state Fe²⁺ ion?

• A) [Ar]3d⁵
• B) [Ar]4s¹3d⁵
• C) [Ar]3d⁶
• D) [Ar] 4s¹4d⁵
• E) [Ar]4d⁶

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