alkali-earth metals

alkali-earth metals
Смотри щелочноземельные металлы.

Энциклопедический словарь по металлургии. — М.: Интермет Инжиниринг. . 2000.

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  • alkaline earth metals — plural noun The bivalent metals of the second group of the periodic system, calcium, strontium, barium, and sometimes magnesium and radium • • • Main Entry: ↑alkali …   Useful english dictionary

  • alkali metal — Chem. any of the group of univalent metals including potassium, sodium, lithium, rubidium, cesium, and francium, whose hydroxides are alkalis. [1880 85] * * * Any of the six chemical elements in the leftmost group of the periodic table (lithium,… …   Universalium

  • Alkali metal — Group → 1 ↓ Period 2 3 Li 3 …   Wikipedia

  • alkali — /al keuh luy /, n., pl. alkalis, alkalies, adj. n. 1. Chem. a. any of various bases, the hydroxides of the alkali metals and of ammonium, that neutralize acids to form salts and turn red litmus paper blue. b. any of various other more or less… …   Universalium

  • Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

  • alkali metal — noun Any of the soft, light, reactive metals of Group 1 of the periodic table; lithium, sodium, potassium, rubidium, cesium, and francium. See Also: alkaline earth metal …   Wiktionary

  • Alkaline earth metal — Group 2 Period  2 4 Be 3 …   Wikipedia

  • alkaline-earth metal — /al keuh luyn errth , lin /, Chem. any of the group of bivalent metals including barium, radium, strontium, calcium, and, usually, magnesium, the hydroxides of which are alkalis but less soluble than those of the alkali metals. [1900 05] * * * ▪… …   Universalium

  • Acid-alkali reaction — An acid alkali reaction is a special case of an acid base reaction, where the base used is also an alkali. When an acid reacts with an alkali it forms a metal, salt and water. Acid alkali reactions are also a type of neutralisation reaction.In… …   Wikipedia

  • Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare …   Wikipedia


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