More information: http://www.guidechem.com/cas-742/7429-90-5.html
Discovery of Aluminum
Aluminium (or aluminum; see spelling differences) is a chemical element in the boron group with
symbol Al and atomic number 13. It is a silvery white, soft, ductile...
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More information: http://www.guidechem.com/cas-742/7429-90-5.html
Discovery of Aluminum
Aluminium (or aluminum; see spelling differences) is a chemical element in the boron group with
symbol Al and atomic number 13. It is a silvery white, soft, ductile metal. Aluminium is the third
most abundant element (after oxygen and silicon), and the most abundant metal, in the Earth's
crust. It makes up about 8% by weight of the Earth's solid surface. Aluminium metal is so
chemically reactive that native specimens are rare and limited to extreme reducing environments.
Instead, it is found combined in over 270 different minerals.The chief ore of aluminium is bauxite.
Two variants of the metal's name are in current use, aluminium and aluminum (besides the
obsolete alumium). The International Union of Pure and Applied Chemistry (IUPAC) adopted
aluminium as the standard international name for the element in 1990 but, three years later,
recognized aluminum as an acceptable variant. Hence their periodi
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