What are ionic compounds? Why do ionic compounds not conduct electricity in the solid state?

Hint: When two or more chemical elements are chemically bound together, they form a compound. The substances in a mixture are not chemically bound together. Covalent bonds and ionic bonds are two common forms of bonds that keep elements in a compound together.

Complete answer:
Ions of opposite charge are neatly packed to form crystalline solids. When metals react with non-metals, ionic compounds are formed.
Ionic compounds, in other words, are ionic compounds bound together by ionic bonds. In order to achieve their nearest noble gas configuration, elements will gain or lose electrons. The formation of ions for the completion of the octet (either by acquiring or losing electrons) aids in their stability.
Metals lose electrons to complete their octet in a reaction between metals and nonmetals, whereas non-metals gain electrons to complete their octet. Ionic compounds are formed when metals and non-metals react.
Since the ions are not free to pass, electrical conductivity does not exist in solid ionic compounds. The ionic compound dissociates into its constituent ions in a liquid.
Explanation: The movement of charged particles is needed for electrical conductivity. The Coulomb is the most common unit of charge (C).Electrostatic forces keep the ions together in a crystal lattice system, which is a 3D interconnected ion network, in the solid state. Since the ions are not free to pass, a solid ionic compound does not conduct electricity.

Note:
Chemical bonds are attractive electrostatic interactions that hold atoms in chemical compounds together. Ionic compounds have an equal number of positively and negatively charged ions, resulting in a charge of zero. Electrostatic forces hold the ions together in a normal spatial structure.