Consider the Ions Co²⁺,Mn²⁺,and Fe³⁺

question 57

Multiple Choice

Consider the ions Co²⁺,Mn²⁺,and Fe³⁺.Which among them has/have an [Ar]3d⁵ electron configuration?

• A) Co²⁺ only
• B) Mn²⁺ only
• C) Fe³⁺ only
• D) Co²⁺ and Fe³⁺
• E) Mn²⁺ and Fe³⁺

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