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Magnesium The twelfth element on the periodic table is Magnesium. Its symbol is Mg; it has an atomic number of twelve, and has an atomic mass of 24.321. Magnesium belongs to the group 2a of the periodic table. Its chemical name is magnesium. Magnesium melts at 650 degrees Celsius, and boils at 1090 degrees Celsius. An English chemist Sir Humphry Davy discovered it in 1808. Pure Magnesium does not occur in nature. Various minerals contain magnesium compounds and must …showed first 75 words of 597 total…

…showed last 75 words of 597 total…Inc. p.o.p.: New York 3.) book: Calcium and Magnesium vol.: 3 author: Brian Knapp page: 34 copyright: 1996 publisher: Grolier Educational p.o.p.: Connecticut 4.) book: Funk and Wagnall’s New Encyclopedia vol.: 16 author: Leon L. Bram/ Norma H. Dickey page: 327 copyright: MCMLXXI publisher: Funk and Wagnall’s p.o.p.: United States 5.) book: Chemistry vol.: 4th edition author: Anthony C. Wilbraham, Denis D. Staley, and Michael S. Matta page: 376,354 copyright: 1997 publisher: Addison-Wesley p.o.p.: California