Explain:- lonic solids are hard and brittle.

Molecular solids are

Explain crystalline solids.

What are ionic solids ?

Explain a solid solution.

Amorphous solids are

Explain why solids have definite shape and volume?

Explain crystalline solids and amorphous solids.

Explain friction in solids. Give examples.

What is solid state laser?

A crystalline solid is hard brittle and non-conducting in solid state. It conducts electricity when molten. What type of solid is it?