Aluminum is a silvery-white, lightweight metal at room temperature and pressure.Aluminum has a relatively high electronegativity and can easily accept or donate valence electrons to form covalent or ionic compounds. It easily reacts with other elements to generate compounds such as oxides, chlorides, and sulfates.Aluminum is a highly reactive metal that reacts with many substances, including oxygen, water, acids, and bases.It is a highly reactive, silvery-white metal that is the third most abundant element in the Earth’s crust. Its symbol Al and the atomic number is 13. This isn't dangerous and doesn't compromise the strength of the aluminum object, but can lead to off tastes in the food, which is why it is usually not recommended to cook acidic foods in aluminum cookware.Aluminum is an element. However, acidic foods, such as tomatoes, can dissolve the surface oxide layer and some of the aluminum underneath. So dishes, pots, and pans can be made of aluminum, and aluminum foil can be used for packing sensitive foods. This surface layer forms at once when the metal is exposed to air, and is very stable. The metal is protected by a surface layer of aluminum oxide. Aluminum is one of the primary components of the fuel that propels rockets into space.Īluminum isn't dangerous. Thermite burns very quickly and with extreme heat, which is why it's often used to cut or weld steel objects, such as railway tracks. When aluminum is combined with iron oxide (Fe 2O 3) in the right quantity, thermite can be made. The utensils you eat your dinner with could be made with aluminum, along with the kitchen aluminum foil used to wrap up leftover food. The pots and pans your family uses to cook dinner may be made with aluminum. Aluminum helps us get from place to place since it's a part of cars, trucks, airplanes, bicycles, rockets, and more.Įvery morning you wake up and look in a mirror, the reflective backing is likely made from aluminum. What are its uses? 147,000 pounds of aluminum are used in building a single Boeing 747 airplane.Īluminum has many uses. The Bayer process is used to refine aluminum from bauxite (aluminum oxide), an aluminum ore. Where is it found? Īluminum is the most abundant metal in the Earth's crust, and the third most abundant element overall, after oxygen and silicon.
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