Magnesia, a district of Eastern Thessaly in GreeceĪlumina, from Latin alumen (gen. 17 of the periodic table having trivial name halogens. Chlorine is in the halogen group (17) and is the second lightest halogen following fluorine. It also has a relative atomic mass of 35.5. In addition, any new element must be assigned a temporary name and symbol, and if validated, given an official name. It may also be viewed as the sodium salt of hypochlorous acid. Chlorine is a chemical element with symbol Cl and atomic number 17. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game. Symbol Na is derived from Neo-Latin natrium, coined from German Natron, ' natron' Sodium hypochlorite, commonly known in a dilute solution as (chlorine) bleach, is an inorganic chemical compound with the formula NaOCl (or NaClO), 3 consisting of a sodium cation ( Na+. ![]() ![]() ![]() Symbol: Cf atomic no: 98 half-life of most stable isotope. Greek elements hydro- and -gen, ' water-forming'īeryl, a mineral (ultimately from the name of Belur in southern India) īorax, a mineral (from Arabic bawraq, Middle Persian * bōrag)Ĭoined by Humphry Davy who first isolated it, from English soda (specifically caustic soda), via Italian from Arabic ṣudāʕ 'headache' Which chemical element am I a metallic transuranic element artificially produced from curium.
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