Question

Because of the number of negative ions packed around each positive ion in a crystal lattice, ionic compounds are good conductors of electricity and heat in their solid state.

a. True
b. False

Answer 1

Ionic compounds are not good conductors of electricity and heat in their solid state because the strength of the ionic bonds prevents the ions from moving freely. However, once dissolved or melted, ionic compounds can conduct electricity and heat because the ions are free to move.

Step-by-step explanation:

Ionic compounds are not good conductors of electricity and heat in their solid state because the strength of the ionic bonds prevents the ions from moving freely. However, once dissolved or melted, ionic compounds can conduct electricity and heat because the ions are free to move
Example: Sodium chloride (NaCl) is an ionic compound that is a solid at room temperature and does not conduct electricity. However, when it is dissolved in water, it dissociates into Na+ and Cl- ions that are able to move freely and conduct electricity.
It is false that ionic compounds are good conductors of electricity and heat in their solid state.