Symbol (chemical Element)
The symbols of a chemical element are abbreviations that are used to denote a chemical element. Typically, they are one or two letters long with the first letter (only) capitalised; temporary names are three letters long. They are widely used in chemistry and they have been officially chosen by the International Union of Pure and Applied Chemistry. There are also some historical symbols that are currently not official any more.
A list of current, dated, as well as proposed and historical signs and symbols is included here with its signification. Also given is each element's atomic number, atomic mass or most stable isotope, group and period numbers on the periodic table, and etymology of the symbol.
Read more about Symbol (chemical Element): Current Symbols, Symbols Not Currently Used, Symbols For Named Isotopes, Other Symbols That Look Like Element Symbols
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—Aldous Huxley (1894–1963)