chemical aluminum al aluminum al element periodic table element chemistry science education physics school reference bohr atom matter basic information atomic structure isotopes facts related links mla format cite page home site comments help links window version table atomic number atomic mass electron configuration number neutron melt point boiling point date discovery crystal structure element groups alkali metal alkaline earth metals transition metal metal metalloids non metal halogens noble gas rare earth element basic information atomic structure isotopes related links cite page basic information aluminum symbol al atomic number atomic mass amu melting point c k f boiling point c k f number protons electrons number neutron classification metals crystal structure cubic density k g cm color silver british spelling aluminium iupac spelling aluminium atomic structure number energy levels energy level second energy level energy level isotopes isotope half life year stable minute fact date discovery discoverer hans christian oersted origin latin word aluman use airplane soda can obtain bauxite related links note external link site content responsibility site chemical week aluminum university wisconsin madison know link aluminum let know mla format cite page bentor yinon chemical aluminum information cite online source visit mla website page create yinon bentor use web site restrict site license agreement copyright yinon bentor rights reserve