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chlorine: Quick Facts

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Facts

Also Known As Cl

Photos

A labeled diagram of the chlorine element from the periodic table shows its atomic number 17, symbol Cl, electron configuration, and atomic weight range. The box is shaded green to indicate chlorine is a halogen, with icons for orthorhombic crystal structure, gas state at room temperature, and strong acidity. A key explains the icons and colors used.
chlorine
Diagram showing the formation of an ionic bond between sodium (Na) and chlorine (Cl) atoms. Sodium loses an electron to become Na+, chlorine gains an electron to become Cl-, resulting in sodium chloride (NaCl), or table salt.
Dead Sea
A scientific graph plots average nuclear binding energy per nucleon (in MeV) against atomic mass number, showing a sharp rise at low mass numbers, peaking near iron (Fe), then gradually declining for heavier elements. Key isotopes are labeled along the curve.
Figure 13: Transformations of chlorine compounds in the atmosphere.
Diagram showing the chemical reaction where methane (CH4) and chlorine (Cl2) combine to produce chloromethane (CH3Cl) and hydrogen chloride (HCl), with molecular structures and labels.
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Related Topics and References

Topics
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Key People

German Swedish chemist Carl Wilhelm Scheele, c. 1780.
Carl Wilhelm Scheele
Swedish chemist
Michael Faraday
Michael Faraday
British physicist and chemist
Sir Humphry Davy
Sir Humphry Davy
English chemist

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