Chapter 4, Problem 4.88EP

Interpretation Introduction

Interpretation:

The correct name for $\text{ZnS}$ is Zinc sulphide is correct but for $\text{FeS}$ is not Iron sulphide has to be explained.

Concept Introduction:

An ionic compound has two elements one is metal and another one is non-metal.  The metal ion always has positive charge and the non-metal ion always has negative ion in binary compounds.  Example: ${\text{NaCl, CO}}_{\text{2}}$.

The following rule can be used for the naming of binary ionic compounds.

The full name of the metallic element is given first, followed by a separate word containing the stem of the metallic element name and the suffix –ide.

Atoms or elements are found in the atmosphere and earth crust in the form of ores or mixture of elements.  Elements that are found at early times by the Romans and other ancient people named the metals with Latin names.

Example, Iron belongs to Semitic origin and the Latin name of this compound was named as ferrum.  The metal exists in two different forms Fe(II) and Fe(III) with ferrous and ferric names respectively.