Lithium is a soft, silver-white metal that belongs to the alkali metal group of chemical elements. Its medical using. Petalite is lithium aluminium silicate. C. Gmelin was the first man to observe that lithium salts give a bright red color in flame.
13.11.2009 |
Chemistry |
Иностранные языки и языкознание |
Язык: английский |
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