Transition metal complex with highest value of crystal field splitting (Δ₀) will be:

Question

Canvas Classes · Accepted Answer

Strategy:
 Understand trends in Crystal Field Splitting Energy () across different periods of the transition metals.

Step 1: Analyze periodic trends
For analogous complexes (same ligands and geometry),  increases significantly as you move down a group in the d-block: .
This is because 4d and 5d orbitals are more spatially diffuse, extending further from the nucleus. This leads to much stronger overlaps with ligand orbitals, vastly increasing the splitting energy.

Step 2: Evaluate options
-  an

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