If all of the eg orbitals are filled can an electron from the t2g level be promoted to the

Question

If all of the eg orbitals are filled, can an electron from the t2g level be promoted to the

eg level by the absorption of a photon of visible light?

Draw the crystal field splitting diagram for octahedral Zn2+ and Ca2+ complexes. Predict the color of aqueous solutions of Zn2+ sas and Ca2+ sas. Does it matter if the complexes are high-spin or low-spin?

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