Aluminum exists as an element in its pure form, so it simply contains aluminum. Aluminum's symbol is Al, and its atomic number is 13. It is classified as a metal and appears in group 13 on the periodic table. More »

Aluminum is made from a clay-like soil called bauxite. This is a raw material found around the Earth's equator. The bauxite is mined from below ground and then washed. The cleaned bauxite then passes through a grinder. N... More »

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Aluminum occurs naturally in many conditions and forms, particularly in clays. However, the more well-known metallic compound can be made in other ways, including recycling. Aluminum is easily reproduced in this manner. More »

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Aluminum reacts with oxygen to form a layer of aluminum oxide on the outside of the metal, according to HowStuffWorks. This thin layer protects the underlying metal from corrosion caused by oxygen, water or other chemica... More »

Aluminum nitrate is a salt compound composed of aluminum and nitric acid. This odorless salt is usually white in color and has a solid crystalline structure. More »

Aluminum is a silver-grey metal element with a density of 2.7 grams per cubic centimeter. While remaining ductile and malleable, aluminum has a high tensile strength. Solid at room temperatures, aluminum melts at 1,220.5... More »

Aluminum is valuable for several reasons: it is relatively light-weight, resists corrosion and lacks magnetic properties, making it a practical element for multiple purposes. Aluminum ranks among the most versatile eleme... More »