Halogens: Chlorine

1. Halogens: Chlorine • Origin: The element received its name because of it’s color (chloris a Greek word meaning “yellow-green”) • Number of protons: 17 • Number of electrons: 17 • Discovered (man-made) by: Carl Wilhelm Scheele in 1774

2. Halogens: Chlorine • Where is Chlorine found? In oceans, salt lakes, huge amounts are found in the ground as halite or rock salt, also found in the human body. • Common uses of Chlorine: Sterilize drinking water and to disinfect swimming pools • Facts • Melting point: -150.7 F (-101.5 C) • Boiling point: -29.27 F (-34.04 C) Selena Thompson 5-14

3. Halogens: Chlorine • Pictures Selena Thompson 5-14

4. Picture Sources http://www.chemicalelements.com/elements/cl.html http://www.familyleisure.com/Discount-Pool-Supplies/3in-Chlorine-Tablet--4lb http://www.greener-industry.org.uk/pages/chlorine/1_chlorine_AP.htm Name and ABC#

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