Calcium


 * Element Name:** Calcium


 * Element Symbol:** Ca


 * Atomic Mass:** 40[[image:Calcium.png width="216" height="288" align="right"]]


 * Atomic Number:** 20


 * Protons:** 20


 * Electrons:** 20


 * Discovery:** The element calcium was discovered by Sir Humphry Davy in 1808.


 * How It Was Named:** The word calcium id from the Latin word calx, meaning lime.


 * State Of Matter:** Solid


 * Melting Point:** 842°C


 * Boiling Point:** 1484°C


 * Characteristics:** Calcium is a grey silver metal that is low toxic. This element can sometimes have violent reactions to certain liquids.


 * Uses of Element:** This element makes up parts of Earth's crust, is used in vacuum tubes, white paint, cleaning powder, tooth paste and is even in your stomach acids.


 * Interesting facts:** It is never found in free nature. It is the 5th most abundant element.

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