Chapter 22, Problem 34QP

Interpretation Introduction

Interpretation:

The number of unpaired electrons in the given complex ions is to be determined.

Concept Introduction:

A weak-field ligand makes valence electrons to enter separate $d$ orbitals $\left(d_{xy},d_{yz}\text{, }{d}_{zx}\text{ and }{d}_{x^2-y^2},d_{z^2}\right)$ but strong-field ligands make them to enter lower-energy $d$ orbitals $\left(d_{xy},d_{yz}\text{and }{d}_{zx}\right)$.