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Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a soft gray ... Discovery and first isolation, Humphry Davy (1808). Most stable ...

Calcium - Element information, properties and uses | Periodic Table


Element Calcium (Ca), Group 2, Atomic Number 20, s-block, Mass 40.078. Sources, facts ... Periodic Table > Calcium. Glossary ... Discovered by, Humphry Davy.

How was calcium discovered? | Reference.com


Sir Humphry Davy discovered calcium in 1808 by isolating the impure metal through the electrolysis of a lime and mercuric oxide mixture. He accomplished this ...

Calcium - Chemicool


People have used calcium's compounds for thousands of years – in cement, for example. Limestone [calcium carbonate] was called ...

Chemistry for Kids: Elements - Calcium - Ducksters


Kids learn about the element calcium and its chemistry including atomic weight, atom, uses, sources, name, and discovery. Plus properties and characteristics of  ...

A Brief History of Calcium Channel Discovery - Madame Curie ...


Why was the calcium channel nearly overlooked at first, and why did it receive relatively little attention even after it was first discovered? Neural circuits like the ...

Chemical Elements.com - Calcium (Ca)


Calcium at Chemical Elements.com. Basic Information | Atomic ... [Bohr Model of Calcium], Number of Energy Levels: ... Date of Discovery: 1808. Discoverer: Sir ...

Facts About Calcium - Live Science


Apr 25, 2013 ... Properties, sources and uses of the element calcium. ... Discovery: The Romans prepared lime in the first century but did not recognize it as a ...

Who Discovered Calcium?


Calcium is one of the few elements on the periodic table that was discovered several thousand years ago, and has been used in numerous ways since.

Calcium | Minerals Education Coalition


... sulfur and oxygen. Calcium with oxygen forms lime, which is used extensively. ... Discovered by: Sir Humphry Davy of England. Description: Named from the ...

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Calcium»historical information [WebElements Periodic Table]


Calcium was discovered by Sir Humphrey Davy at 1808 in England. ... Compounds such as lime (CaO, calcium oxide) were prepared by the Romans in the first ...

Calcium, Chemical Element - structure, reaction, water, uses ...


Calcium metal was not prepared in a pure form until 1808 when English chemist Humphry Davy ... He also discovered nitrous oxide and two types of lamps.

It's Elemental - The Element Calcium


The Element Calcium - Basic Physical and Historical Information.