How many d electrons are present on the metal ion in the complex ion FeCl₆^3-? A) 7 B) 2 C) 5 D) 4 E) 3

Name: How many d electrons are present on the metal ion in the complex ion FeCl 6 3- ? A) 7 B) 2 C) 5 D) 4 E) 3
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Question

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The oxidation state of Fe in FeCl6^3- is +3. In its elemental form, Fe has the electron configuration [Ar] 3d^6 4s^2. When it loses 3 electrons to form Fe^3+, it loses the 2 electrons from the 4s orbital and 1 electron from the 3d orbital, leaving it with 5 d electrons.

How Many D Electrons Are Present on the Metal Ion