Sodĭum
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SODIUM — Le sodium est le plus courant des éléments alcalins. Son nom dérive de l’arabe soda , qui désignait le mélange de carbonates alcalins extrait des cendres de végétaux. Le symbole Na vient de son appellation allemande Natrium , qui dérive de… … Encyclopédie Universelle
Sodium — Néon ← Sodium → Magnésium Li … Wikipédia en Français
Sodium — So di*um, n. [NL., fr.E. soda.] (Chem.) A common metallic element of the alkali group, in nature always occuring combined, as in common salt, in albite, etc. It is isolated as a soft, waxy, white, unstable metal, so highly reactive that it… … The Collaborative International Dictionary of English
sodium — metallic alkaline element, 1807, coined by English chemist Humphry Davy from SODA (Cf. soda); so called because the element was isolated from caustic soda (sodium hydroxide). The chemical symbol Na is from natrium, alternative name for the… … Etymology dictionary
sodium — [sō′dē əm] n. [ModL: so named (1807) by DAVY Sir Humphry < SODA (because isolated from caustic soda) + IUM] 1. a soft, silver white, metallic chemical element, one of the alkali metals, having a waxlike consistency: it is found in nature only… … English World dictionary
Sodium — Sodium, so v.w. Natrium … Pierer's Universal-Lexikon
Sodium — Sodium, s.v.w. Natrium (s.d.) … Lexikon der gesamten Technik
Sodium — Sodĭum, s.v.w. Natrium … Kleines Konversations-Lexikon
sodium — Symbol: Na Atomic number: 11 Atomic weight: 22.9898 Soft silvery reactive element belonging to group 1 of the periodic table (alkali metals). It is highly reactive, oxidizing in air and reacting violently with water, forcing it to be kept under… … Elements of periodic system
sodium — ► NOUN ▪ a soft silver white reactive metallic chemical element of which common salt and soda are compounds. ORIGIN from SODA(Cf. ↑soda) … English terms dictionary
