Aluminium is a chemical element with symbol
Al and atomic number 13. It is silvery-white, soft, nonmagnetic and
ductile metal in the boron group. By mass, aluminium makes up about 8%
of the Earth¿s crust, it is the third most abundant element after oxygen
and silicon and most abundant metal in the crust. It is remarkable for
its low density and its ability to resist corrosion through the
phenomenon of passivation. Aluminium and its alloys are vital to the
aerospace industry &important in transportation and building
industries such as building facades & window frames