
Concept explainers
Interpretation:
The structure of ionic solids is to be described in general terms.
Concept introduction:
Ionic solids are the solids made up of ions. They are made generally when metal and non-metal combines with each other.

Answer to Problem 25A
Ionic solid contains specific number of positive and negative charged ions. It is represented as simple whole number formula called empirical formula. Ions are arranged in crystal lattice so that attraction between the ions is maximum and repulsions are minimum.
Explanation of Solution
One unit of Crystal lattice of
Thus, ionic solids are arranged in specific pattern which is repeated in a whole crystal. The repeating unit is called unit cell. The formula of unit cell is the actual formula of ionic compound.
Chapter 12 Solutions
World of Chemistry
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