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Chlorine
Chemical element
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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... Wikipedia
Symbol: Cl
Atomic mass: 35.453 u
Atomic number: 17
Electronegativity: 3.16
Melting point: -150.7°F (-101.5°C)
Boiling point: -29.27°F (-34.04°C)
Electron configuration: [Ne] 3s² 3p⁵
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