It is towards the latter half of the semester in Chem. It is assumed in CFT that the metal is surrounded by a spherical symmetric field of negative charge which the distribution of the repulsive effect causes destruction of the d-orbital. This is shown in figure 1. The degeneracies of the d-orbital. Splitting patterns occur differently with different geometries, e.g. square planar, tetrahedral ,linear, etc.
Ligands differ in their abilities to produce a splitting of the d-orbital.
Some energy separation between the higher and lower energy d levels are large than the energy benefit derived by unpairing electrons. We used a very unique analytical balance. It was a very old analytical balance which uses gravity. We also had a long thin glass tube to put our compounds. Most of the compounds are colored and are also solids.