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Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature.
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chlorine is a naturally- occuring chemical element, one of the basis building blocks of matter. symbol of chlorine is Cl and atomic number is 17.
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