Calcium (Ca)
Atomic number:20
Atomic mass:40.078
color:silvery white
element group name:Alkaline Earth metal
solid, liquid, or gas:solid
density: 1.55 g in cubic cm
Interesting Facts:
Atomic mass:40.078
color:silvery white
element group name:Alkaline Earth metal
solid, liquid, or gas:solid
density: 1.55 g in cubic cm
Interesting Facts:
- Calcium makes up 3.5% of the earths crust
- Calcium comes from the latin word calx which means lime
- Calcium is a good conductor of electricity
- calcium can be found in limestone and marble
- when calcium metal is combined with water it bubbles off hydrogen gas and forms calcium hydroxide
Chemical Properties:
melting point:
839 C, 1542.2 F, 1112.15 K
boiling point:
1484 C, 2703.2 F, 1757.15 K
melting point:
839 C, 1542.2 F, 1112.15 K
boiling point:
1484 C, 2703.2 F, 1757.15 K
Uses:
How was Calcium discovered?
Calcium was first isolated by Sir Humphrey Davy in 1808 in England. He was able to isolate calcium from HgO(lime and mercuric oxide) a electrolysis (chemical changes producing by a passage of electric current through a conductor in which a electrical current is carried by the movement of a or an atom that carries a positive or negative electric charge as a result of gaining or losing electrons) mixture of lime and mercuric oxide.
- helps blood clot(a lump made by a thickened liquid that sticks together).
- contracts(to draw or squeeze together) muscles
- protection for bones and teeth
- 2% of your body contains calcium
- green vegetables,milk, and milk products have lots of calcium
- calcium carbonate is used for cement
- calcium is constituent for leaves, teeth, bones, and shells
- Calcium is even used in chalkboard chalk
How was Calcium discovered?
Calcium was first isolated by Sir Humphrey Davy in 1808 in England. He was able to isolate calcium from HgO(lime and mercuric oxide) a electrolysis (chemical changes producing by a passage of electric current through a conductor in which a electrical current is carried by the movement of a or an atom that carries a positive or negative electric charge as a result of gaining or losing electrons) mixture of lime and mercuric oxide.
Works Cited
Enterprises, Field. "Calcium." The World Book Encyclopedia. 2009. Print.
Heiserman, David L. Exploring Chemical Elements and Their Compounds. Blue Ridge Summit, PA: Tab, 1992. Print.
Winter, Mark. "Calcium." WebElements Periodic Table of the Elements. Web Elements, 2012. Web. 23,18,20 Mar. 2013.
Yinon, Bentor. "Chemical Elements.com - Calcium (Ca)." Chemical Elements.com - Calcium (Ca). Bentor Yinon, 2012. Web. 23,20,18 Mar. 2013.
Enterprises, Field. "Calcium." The World Book Encyclopedia. 2009. Print.
Heiserman, David L. Exploring Chemical Elements and Their Compounds. Blue Ridge Summit, PA: Tab, 1992. Print.
Winter, Mark. "Calcium." WebElements Periodic Table of the Elements. Web Elements, 2012. Web. 23,18,20 Mar. 2013.
Yinon, Bentor. "Chemical Elements.com - Calcium (Ca)." Chemical Elements.com - Calcium (Ca). Bentor Yinon, 2012. Web. 23,20,18 Mar. 2013.