1.43 explain the high melting and boiling points of substances with giant covalent structures in terms of the breaking of many strong covalent bonds

GIANT COVALENT STRUCTURES:

- A giant covalent structure is formed when all atoms are bonded together. There are lots of bonds and hence require a lot of energy to overcome which means that the structures have very high melting and boiling points.
- Examples are diamond and graphite.