Chapter 9.5, Problem 51LC

Interpretation Introduction

Interpretation: The general guidelines that help in the writing of the name and formula of a compound are to be stated.

Concept Introduction : Ionic compounds are formed by the transfer of electrons between metal and non-metal. They are named as $\text{Name}\text{of}\text{metal}+\text{Stem}\text{of}\text{non-metal}+\text{'}ide\text{'}$

Answer to Problem 51LC

The general guidelines that help in the writing of the name and formula of a compound are:

1. Element which is metal and non-metal should be known.
2. The element and its symbol and charge should be known.
3. Charges on the ion must be balanced.
4. The name of the metal is written first, then the non-metal name, and then ‘ide’.

Explanation of Solution

The general guidelines that help in the writing of the name and formula of a compound are:

1. Element which is metal and non-metal should be known.
2. The element and its symbol and charge should be known.
3. Charges on the ion must be balanced.
4. The name of the metal is written first, then the non-metal name, and then ‘ide’.

For example: $\text{KBr}$ is composed of potassium (metal) and bromine (non-metal). So, the compound is an ionic compound. It is formed by ${\text{K}}^{+}$ ion and ${\text{Br}}^{-}$ ion. Thus, the name of the compound is potassium bromide.