Aluminium

Aluminum [[Atomic mass|Aluminum/Atomic mass]] +3   [[Periodic table of elements|Aluminum/Atomic symbol]] [[Atomic number|Aluminum/Atomic number]] 1s22s22p63s23p1 13,3,p [ ? ] [[Aluminum/Periodic table of elements]]: Properties: Light, malleable , silvery-white metal. Uses: Most widely used non-ferrous metal. Construction, packaging, houshold items. Hazard: Aluminum powder is slightly flammable.

Aluminum (American English) or aluminium (British English) is a chemical element, having the chemical symbol Al. Its atomic number (the number of protons) is 13. It has a standard atomic weight of 26.98154 g•mol ⁻¹, and is typically found as a solid in its elemental form.

Aluminum is considered to be a member of the "Post-transition metal" class of element. At a pressure of 101.325 kPa, it has a boiling point of 2,519 °C, and a melting point of 660.32 °C. It is the most reactive post-transition element metal and the most abundant metal in the Earth's crust.