Chlorine

Chlorine is a poisonous, yellowish-green gas with a strong, unpleasant odor.

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Ions 3 Cl(VII) Cl(-II) Cl(-I)

35 Cl 37 Cl
 * Isotopes 2**

discovered in 1774

group17 period3 Works Cited " Chlorine (Cl)." //Chemical Elements.com - An Interactive Periodic Table of the Elements//. N.p., n.d. Web. 3 Dec. 2009. . Patterson, James. "PHMS." //portaportal Guest Search//. N.p., n.d. Web. 3 Dec. 2009. . "Periodic Table Of The Elments." //Prairie Hills Middle School Student Handbook// Aug. 2009: 1. Print. "Periodic table of the elements." //Prairie Hills Middle School//. 1 ed. 2009. Print. "The Photographic Periodic Table of the Elements." //The Photographic Periodic Table of the Elements//. N.p., n.d. Web. 3 Dec. 2009. . "WebElements Periodic Table of the Elements | Chlorine | naturally occurring isotopes data." //WebElements Periodic Table of the Elements//. N.p., n.d. Web. 3 Dec. 2009. .

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