AS 91164 Structure and bonding:Practice question 1
The structurfe of quartz
Silicon and oxygen atoms are arranged in a three dimensional covalent network. A portion of such a framework is shown here. In this arrangement, the stoichiometry is reduced to SiO2, (each silicon has a half share of four oxygens) which is often called silica. A collection of small pieces of quartz is sand.
Tackle both questions on quartz and zinc below.