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Who Discovered Calcium? 

 

Who Discovered Calcium?

 

 

 

The element Calcium was first discovered by Sir Humphry Davy, a British Chemist, in 1808, in England, through the electrolysis of a mixture of lime (CaO) and mercuric oxide (HgO).

 

 

Calcium is a chemical element with atomic number 20 and  its symbol is Ca.

 

Calcium is an alkaline earth metal soft, gray, used as a reducing agent in mining extraction of thorium, uranium and zirconium. 

 

Calcium is not found in nature as a free element but as part of several minerals.

 

It is the fifth item in order of abundance in the earth's crust, and is essential for life on earth.

 

source:

 

lhttp://education.jlab.org/itselemental/ele020.html

 

http://www.webelements.com/calcium/

 

http://www.bbc.co.uk/history/historic_figures/davy_humphrey.shtml

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