Chapter 5, Problem 64E

Interpretation Introduction

Interpretation:

For each ionic compound, the formation of only one type of ion or more than one type of ion by the metal and name of the compound are to be determined.

Concept introduction:

Ionic compounds are composed of one or more cations paired with one or more anions.

In most of the cases, cations are metals and anions are non-metals.

Combination of a metal and a non-metal leads to the formation of ionic compounds.

Depending on the metal in each ionic compound, the compound categorized into two types. Type I, these compounds contain metal with invariant charge and form only one type of ion. Type II, these compounds contain metal with variable charge, has more than one oxidation states and form more than one ion.

The transition metals form more than one type of ion.

Specify the charge in metal’s name for transition metals because charge of these metals is not always the same.

The type I ionic compounds in which metal ion forms only one type of ion is:

$\left[\begin{array}{l}\text{name of the cation}\\ \text{(metal)}\end{array}\right]\left[\begin{array}{l}\text{name of the anion}\\ \text{(nonmetal) + -ide}\end{array}\right]$

The type II ionic compounds in which metal ion forms more than one type of ion is:

$\left[\begin{array}{l}\text{name of the cation}\\ \text{(metal)}\end{array}\right]\left(\begin{array}{l}\text{charge of the cation (metal) in}\\ \text{roman numerals in parentheses}\end{array}\right)\left[\begin{array}{l}\text{name of the anion}\\ \text{(nonmetal) + -ide}\end{array}\right]$