Chapter 21, Problem 25E

Interpretation Introduction

Interpretation: The electron configuration of metal ion in each given complex compound is to be stated.

Concept introduction: Valence electrons are filled in four principal orbitals according to the energy levels. The four orbitals are $\text{s, p, d}$ and $\text{f}$.

The metals from group $\text{3-12}$ are known as first row transition metals.

The distribution of electrons among different orbitals is given by electron configuration. When element lose an electron, a positive charge is accumulated on it whereas when an element gains an electron, negative charge is accumulated on it.