The Electron Configuration of an Fe²⁺ Ion Is

question 62

Multiple Choice

The electron configuration of an Fe²⁺ ion is

• A) [Ar]4s²4d⁴.
• B) [Ar]4s²3d⁶.
• C) [Ar]3d³.
• D) [Ar]3d⁵.
• E) [Ar]3d⁶.

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