Element #17 CHLORINE

1. People from foreign countries pronounce chlorine differently from one another. Chlorine is pronounced Chlore in France, Chlor in Germany, and Chloro in Italian.
2. Here's some examples of chlorine






3. Protons:17 Neutrons:18. Naturally occurring isotopes are chlorine-35 and chlorine-37. Natural abundance is 75.7%. Average atomic mass is 35.4 g

4. # of electrons:17 # of shells are 2,8,7

5. my Atomic radius is 79 pm

6. melting point: 171.6 K, boiling point: 239.11, Thermal conductivity: 0.0089 W, Velocity of Sound: 206 m

7. Body: 103.5g Earth's Crust: 170,000  Universe: 100 ppb

8. Compounds I form include Chlorine Dioxide, Chlorine Fluoride, Chlorine trifluoride, and chlorine pentafluoride. 

9. I was found by Carl Wilhelm Scheele in 1774. He obtained it through the reaction of the mineral pyrolusite (manganese dioxide, MnO₂) with hydrochloric acid (HCl, then known as muriatic acid). Scheele thought the resulting gas contained oxygen. 

10. My roles in human society are irritates  mucous membranes, kills bacteria in water, and was used as a gas in war

11.  

12. http://www.webelements.com/