A crystal does not conduct electricity,yet its melt and aqueous solutions do.It is hard and brittle and melts at a high temperature.What type of crystal is it?
A)a molecular crystal
B)a network covalent crystal
C)a metallic crystal
D)an ionic crystal
E)an intermetallic crystal

Question

Quizplus · Accepted Answer

Ionic crystals do not conduct electricity in the solid state because the ions are held in fixed positions and cannot move to carry an electric charge. However, when melted or dissolved in a solvent, the ions are free to move and carry an electric charge. Ionic crystals are also typically hard and brittle and have high melting points.

A Crystal Does Not Conduct Electricity,yet Its Melt and Aqueous