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Aluminium

Aluminium is the most common metal in nature. It is a reactive light metal that coats itself in air with a stable oxide layer that protects it from further corrosion. As an element of the III. As an element of the III. main group (so-called earth metals) it forms compounds in which it is present in the oxidation state +III. The metal obtained by fused-salt electrolysis is used in technology for the production of wires - do my calculus homework for me, packaging material and as a component of numerous alloys as a material (vehicle construction) and building material (profiles, pipes, sheet metal).

Isotopes of the element

As an anisotopic element, aluminium occurs in nature only in the form of a stable isotope. In addition, there are 17 artificial radioactive isotopes with mass numbers 22-39. The lighter isotopes (A<27) decay into the corresponding magnesium isotopes.

Further properties

Aluminium is a soft, silvery-white, very light metal with a lattice structure. Aluminium is base metal and very reactive. When exposed to air, it quickly forms a thin oxide layer that protects against further corrosion. The protective layer can be strengthened and hardened by the anodising process. Aluminium reacts very violently with hydrochloric acid and caustic soda and weakly with sulphuric acid - not with cold nitric acid. Aluminium is a good conductor of heat and electric current.

Discovery

In 1754, the German chemist Marggraf discovered alumina (aluminium oxide), which he named after it. In 1825, the Dane Christian Orsteed succeeded in producing aluminium by reacting aluminium chloride with potassium amalgam. In 1854, the metal was produced by Bunsen and (independently of him) by Deville by electrolysis.