File:Chlorine_in_bottle.jpg · Wikimedia Commons · See Wikimedia Commons
Also known as Cl, element 17, bertholite, ₁₇Cl
Chlorine is a chemical element; it has 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. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity on the revised Pauling scale, behind only oxygen and fluorine.
Chlorine is a yellow-green gas and chemical element that sits between fluorine and bromine in the periodic table, with properties falling between those two elements. It is extremely reactive and a powerful oxidizing agent, ranking among the highest in the periodic table for electron affinity and electronegativity.
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