Calcuim

Calcium By: Jenna Jahnke Symbol: Ca

Atomic #: 20 Atomic Mass: 40.078 Melting Point: 842 degrees Celsius Boiling Point:1484 degrees Celsius Normal Phase: Solid Cost=$11 for a gram Classified as a Metal Belongs to the alkaline earth metal It comes from the Latin word for lime (calx) It was discovered by Sir Humphrey Davy in 1808.
 * 1) of Protrons:20
 * 2) of Neutrons:20
 * 3) of Electrons:20

Facts about Calcium
 * It's the fifth most abundant element in the earth's crust.
 * You can use calcium carbonate to make white paint, stomach antacids, cleaning powder and toothpaste.
 * This element can only be found in living organisms.
 * It occurs naturally in Limestone, Gypsum, and Fluorite.
 * Vitamin D is need for an organism to absorb calcium.

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