alleryCrystal Field Theory: in an OCTAHEDRAL field, the d-orbitals split into:
AFive equal orbitals
BOne group
Ct2g (lower, 3 orbitals) and eg (higher, 2 orbitals)
DTwo equal sets
Answer & Solution
Correct answer: C. t2g (lower, 3 orbitals) and eg (higher, 2 orbitals)
**In octahedral CF:** t2g (dxy, dxz, dyz — lower energy, 3 orbitals) and eg (dx²-y², dz² — higher energy, 2 orbitals).
The splitting Δ_oct = energy gap.
Ligand strength determines Δ size.
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