barium

barium
barium 1808, coined in Modern Latin from Gk. barys "heavy;" so called by its discoverer, English chemist Sir Humphrey Davy (1778-1829), because it was present in the mineral barytes "heavy spar" (barium sulphate), so named by Lavoisier from Gk. barys "heavy" (see GRAVE (Cf. grave) (adj.)). The metal is actually relatively light.

Etymology dictionary. 2014.

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  • Barium — (pronEng|ˈbɛəriəm) is a chemical element. It has the symbol Ba, and atomic number 56. Barium is a soft silvery metallic alkaline earth metal. It is never found in nature in its pure form due to its reactivity with air. Its oxide is historically… …   Wikipedia

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  • barium — Symbol: Ba Atomic number: 56 Atomic weight: 137.34 Silvery white reactive element, belonging to group 2 of the periodic table. Soluble barium compounds are extremely poisonous. Identified in 1774 by Karl Scheele and extracted in 1808 by Humphry… …   Elements of periodic system

  • Barium — Ba ri*um, n. [NL., fr. Gr. bary s heavy.] (Chem.) One of the elements, belonging to the alkaline earth group; a metal having a silver white color, and melting at a very high temperature. It is difficult to obtain the pure metal, from the facility …   The Collaborative International Dictionary of English

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