Introduction to Chemical Bonding assignment by Chua Sing Earn, Joel 2P308

Sulfur Dioxide
Sulfur dioxide is a harmful compound that is formed when the harmless elements sulfur and oxygen react together. Covalent bonding is involved in the process. It has the formula of SO2. It is produced by volcanoes and in various industrial processes. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide unless the sulfur compounds are removed before burning the fuel.

Sulfur is an abundant, multivalent non-metal. It is a bright yellow crystalline solid in its native form. In nature, it can be found as the pure element and as sulfide and sulfate minerals. It is an essential element for life and is found in two amino acids: cysteine and methionine.

Oxygen is a member of the chalcogen group on the periodic table, and is a highly reactive nonmetallic element that readily forms compounds with almost all other elements. Free oxygen is too chemically reactive to appear on Earth without the photosynthetic action of living organisms, which use the energy of sunlight to produce elemental oxygen from water. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless, odorless, tasteless diatomic gas with the formula O2.

                      This is the Dot and Cross Diagram of Sulfur Dioxide:

Sources: http://en.wikipedia.org/wiki/Sulfur_dioxide
                 http://en.wikipedia.org/wiki/Oxygen
                 http://en.wikipedia.org/wiki/Sulfur