Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is
a soft gray ...... Tokyo, Japan: The International Technical Information Institute.
Element Calcium (Ca), Group 2, Atomic Number 20, s-block, Mass 40.078.
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Extensive information on history, uses, occurrence, compounds, and properties of
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Sep 4, 2016 ... Here are quick facts about the element calcium. ... Online Study Resources ·
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Calcium's properties, discovery, videos, images, states, energies, ... (Berzelius,
the great Swedish chemist, exchanged a great deal of information with Davy.
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History. From the Latin word calx, lime. Though lime was prepared by the
Romans in the first century under the name calx, the metal was not discovered
Calcium is a chemical element with the symbol Ca and an atomic number of 20.
... Check out our calcium carbonate facts for more information. Calcium is also ...
Read our article and learn more on MedlinePlus: Calcium in diet. ... MedlinePlus
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