Which of the following transition metal ions would have the greater $\Delta$_o value when the same ligand was bound to the ions?

Question

Quizplus · Accepted Answer

The magnitude of the crystal field splitting energy (F1F1F1S1F1F1F10_o) increases with increasing nuclear charge and decreasing ionic radius. Among the given options, iridium has the highest nuclear charge and the smallest ionic radius, which results in the highest F1F1F1S1F1F1F10_o value.

Which of the Following Transition Metal Ions Would Have the Greater