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Chlorine at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page


Basic Information


Name: Chlorine
Symbol: Cl
Atomic Number: 17
Atomic Mass: 35.4527 amu
Melting Point: -100.98 °C (172.17 K, -149.764 °F)
Boiling Point: -34.6 °C (238.55 K, -30.279997 °F)
Number of Protons/Electrons: 17
Number of Neutrons: 18
Classification: Halogen
Crystal Structure: Orthorhombic
Density @ 293 K: 3.214 g/cm3
Color: green


Atomic Structure

[Bohr Model of Chlorine]  
Number of Energy Levels: 3

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 7

Isotopes

Isotope Half Life
Cl-35Stable
Cl-36301000.0 years
Cl-37Stable
Cl-3837.2 minutes

Facts


Date of Discovery: 1774
Discoverer: Carl Wilhelm Scheele
Name Origin: From the Greek word khl˘ros (green)
Uses: Water purification, bleaches
Obtained From: Salt

Related Links

Note: The external links below are not a part of this site and their content is not the responsibility of this site
  1. Salt Institute
    • Information about sodium chloride (table salt)
  2. Chlorine Chemistry Council
    • Designed to promote understanding of chlorine chemistry
If you know of any other links for Chlorine, please let me know

MLA Format for Citing This Page


Bentor, Yinon. Chemical Element.com - Chlorine. <http://www.chemicalelements.com/elements/cl.html>.

For more information about citing online sources, please visit the MLA's Website.

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