In potassium ferrocyanide, there are pairs of electrons in the set of orbitals.

Question

In potassium ferrocyanide, there are  pairs of electrons in the  set of orbitals.

Canvas Classes · Accepted Answer

Strategy:
 Find the d-electron count for the iron center, apply crystal field splitting, and locate the pairs of electrons in the  set.

Step 1: Determine Iron configuration
Potassium ferrocyanide is .
The oxidation state of Iron is +2, meaning it is an  ion.
 has a  electron configuration.

Step 2: Apply the ligand field
Cyanide () is a strong field ligand, producing a large CFSE ().
This forces a low-spin configuration, meaning all 6 electrons completely fill the lower energy  orbitals before

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