Which of the followig is/are correct regarding the magnitude of crystal field splitting energy `Delta`?

Options

A. it depends on the coordination geometry. `Delta` for octahedral `gt` square planar `gt` tetrahedral
B. it depends on oxidation number of central atom `M.Delta` for `M^(3+)gtM^(2+)`
C. it depends on whether the central atom M belongs to 3 series or `4d//5d` series.
D. it depedns on the ligand.

Answer

B, C, D

Explanation

`Delta` for square planar `gt` octahedral `gt` tetradedral