Names for sets of chemical elements | Wikipedia Easy Search

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Periodic table
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Periodic table forms 18-column 32-column Alternative and extended forms
Periodic table history D. Mendeleev 1871 table 1869 predictions Discovery of elements Naming and etymology for people for places controversies (in East Asia) 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+ Blocks (s, p, d, f, ...) Atomic orbitals Aufbau principle
By metallic classification Metals alkali alkaline earth transition post-transition lanthanide actinide (superactinide) Metalloids dividing metals and nonmetals Nonmetals unclassified nonmetal halogen 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 and trans- actinides
Elements
List of chemical elements by abundance (in human body) by atomic properties by isotope stability by symbol
Properties of elements 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
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There are currently 118 known chemical elements with a wide range of physical and chemical properties. Amongst this diversity, scientists have found it useful to apply names for various sets of elements that have similar properties, to varying degrees. Many of these sets are formally recognized by the standards body IUPAC.^[1]

^ International Union of Pure and Applied Chemistry (2005). Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005). Cambridge (UK): RSC–IUPAC. ISBN 0-85404-438-8. Electronic version. Retrieved 10 June 2012.