Four types of structure are:
giant molecular
giant ionic
giant metallic
simple molecular

a. Give two examples of a giant ionic structure and two examples of a simple molecular structure.

b. Explain why substances with giant ionic structures are often brittle but metallic structures are malleable.

c. Explain why giant molecular structures have higher melting points than simple molecular structures.

d. Diamond and graphite are two forms of carbon with giant molecular structures. Explain why graphite conducts electricity but diamond does not.