A solid is hard, brittle and electrically non conductor . its melts conduct electricity . what type of solid is it?

A solid is hard, brittle and electrically non conductor . its melts co

1.	A solid is hard, brittle and electrically non conductor . its melts conduct electricity . what type of solid is it?
Answer» Generally, ionic crystals form from a combination of Group 1 or 2 metals and Group 16 or 17 nonmetals or nonmetallic polyatomic ions. Ionic crystals are hard and BRITTLE and have high melting POINTS. Ionic COMPOUNDS do not conduct electricity as SOLIDS, but do conduct when molten or in aqueous solution.