Calcium: Difference between revisions
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imported>Chris Day |
imported>Milton Beychok m (Copy edits of infobox data) |
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|properties= | |properties=Silvery-white, hard metal. | ||
|compounds= | |compounds=oxide (lime), carbonate, nitrate, sulfide, chloride, and others | ||
|uses= | |uses= | ||
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'''Calcium''' is the chemical element with the symbol Ca and atomic number 20. | '''Calcium''' is the chemical element with the symbol Ca and atomic number 20. | ||
Calcium is essential for [[life]], particularly in [[cell]] [[physiology]], where movement of the calcium ion Ca<sup>2+</sup> into and out of the cytoplasm functions as a signal for many cellular processes, including neuromuscular contractions. It is also a major material used in mineralization of bones, teeth and shells. | Calcium is essential for [[life]], particularly in [[cell]] [[physiology]], where movement of the calcium ion Ca<sup>2+</sup> into and out of the cytoplasm functions as a signal for many cellular processes, including neuromuscular contractions. It is also a major material used in mineralization of bones, teeth and shells. | ||
Revision as of 23:39, 18 April 2011
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Calcium is the chemical element with the symbol Ca and atomic number 20.
Calcium is essential for life, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes, including neuromuscular contractions. It is also a major material used in mineralization of bones, teeth and shells.