Chlorine

http://en.wikipedia.org/wiki/Chlorine (Rank: 146250)

http://www.eurochlor.org (Rank: 425659)

http://www.chemicalelements.com/elements/cl.html (Rank: 614860)

http://www.lenntech.com/Periodic-chart-elements/Cl-en.htm (Rank: 687319)

http://environmentalchemistry.com/yogi/periodic/Cl.html (Rank: 1009527)

http://periodic.lanl.gov/elements/17.html (Rank: 1584170)

http://education.jlab.org/itselemental/ele017.html (Rank: 1722997)

http://www.c-f-c.com/specgas_products/chlorine.htm (Rank: 1723903)

http://www.webelements.com/webelements/elements/text/Cl/key.html (Rank: 2158573)

http://www.chemsoc.org/viselements/pages/chlorine.html (Rank: 2390828)

http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/17.html (Rank: 2824277)

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