#13 AluminumAluminum (Al), also spelled aluminium, chemical element, a lightweight, silvery-white metal of main Group 13 (IIIa, or boron group) of the periodic table. ... The name aluminum is derived from the Latin word alumen, used to describe potash alum, or aluminum potassium sulfate, KAl(SO4)2∙12H2O. Atomic mass:26.981539 amu 660.37 °C (933.52 K, 1220.666 °F) Melting point:660.37 C (933.52 K, 1220.666 F) Boiling point:2467.0 C (2740.15 K, 4472.6 F) Density:293 K: 2.702 g/cm3 |