They are made up of many large molecules that are bonded together.
They are made up of atoms of only one type of element.
They are made up of particles that are arranged in a repeating pattern.
They are made up of a random ratio of elements that are bonded together
A ( They are made up of up of many molecules that are bonded together) wasn't right for me try C ( They are made up of particles that are arranged in a repeating pattern) that should be right.
