each carbon atom is joined to four other carbon atoms by strong covalent bonds
the carbon atoms form a regular tetrahedral network structure
there are no freeelectrons
Properties and uses
The rigid network of carbon atoms, held together by strong covalent bonds, makes diamond very hard. This makes it useful for cutting tools, such as diamond-tipped glass cutters and oil rig drills.
Like silica, diamond has a very high melting point and it does not conduct electricity.
