Why does a salt not conduct electricity in its solid state?

In order to conduct electricity, charged particles must be available and these charged particles must have the possibily to move around freely. Salts consist of ions: charged particles. In the solid state however, the ions are trapped in a lattice by electrostatic forces. This means that the charged particles cannot move around freely and therefore salts do not conduct electrivity in their solid state. 

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Answered by Thomas D. Chemistry tutor

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