Light metal

Light metals

Metals and metalloids with a density < 5 g/cm3

Part of a series on the
Periodic table
Periodic table forms 18-column large cells 32-column (large cells) Alternative forms Chemical Galaxy Janet's left step Beyond period 7 Fricke large cells Pyykkö
Periodic table history Dmitri Mendeleev predictions Discovery of elements Naming & etymology for places for scientists controversies Systematic element names
Sets of elements
by periodic table structure: Groups (1–18) 1 (alkali metals) 2 (alkaline earth metals) 3 4 5 6 7 8 9 10 11 12 13 14 15 (pnictogens) 16 (chalcogens) 17 (halogens) 18 (noble gases) Periods (1–7 ...) 1 2 3 4 5 6 7 8+ Aufbau Fricke Pyykkö Blocks (s, p, d, f, ...) Atomic orbitals Aufbau principle
by metallic classification: Metals alkali alkaline earth transition post-transition lanthanide actinide (super-/eka-super-) Metalloids dividing metals & nonmetals Nonmetals polyatomic diatomic monatomic (noble gas)
by other characteristics: Coinage metals Platinum group metals Precious metals Refractory metals Heavy metals Light metals Native metals Noble metals Main-group elements Rare earth elements Transuranium, transplutonium elements Major, minor & trans- actinides
Elements
List of chemical elements ... by abundance (in human body) by atomic properties by isotope stability by annual production by symbol
Properties of elements {{}} = in periodic table template Atomic weight {{}} Crystal structure {{}} Electron affinity {{}} configuration {{}} Electronegativity {{Allen}} {{Pauling}} Goldschmidt classification {{}} Nutrition {{}} Valence {{}}
Data pages for elements Abundance Atomic radius Boiling point Critical point Density Elasticity Electrical resistivity Electron affinity / configuration Electronegativity Hardness Heat capacity / of fusion / of vaporization Ionization energy Melting point Oxidation state Speed of sound Thermal conductivity / expansion coefficient Vapor pressure
Book Category Chemistry Portal

A light metal is any metal of relatively low density. More specific definitions have been proposed; none have obtained widespread acceptance. Magnesium, aluminium and titanium are light metals of significant commercial importance. Their densities of 1.7, 2.7 and 4.5 g/cm³ range from 19 to 56% of the densities of the older structural metals, iron (7.9) and copper (8.9).

See also

• Heavy metal (chemical element)