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Chlorine Cl
Where is chlorine used--or where does it impact our everyday lives?
Used in disinfecting drinking water--chlorine is posonous to bacteria in drinking water
Chlorine Cl
Atomic number: 17 Atomic mass: 35.45
Position on the periodic table
Group number: 17 (Halogen [salt-forming] group) Period number: 3
Melting point: -101.5 oC (-150oF)
Boiling point: -34.04oC (-29.272oF)
Reaction with air (oxygen): not reactive
Reaction with water: dissolves to give a light green solution
H2O + Cl2 --> HCl + HClO
Electron configuration: 2,8,7
Source: LANL.gov
Researcher: Alice H
Many minerals are chlorides. These are sylvite, KCl, samples from IMC Fertilizer Carlsbad mine. Carlsbad, Mexico on display at the National Museum of Natural History in Washington D.C. viewed during a Chemistry One field trip.
Chemistry TWO students Angela C and Mia G, Class of 2019, with lab fawcets showing tap water containing chlorine as a disinfectant.
Wis Photographer
Another sample of sylvite, KCl, from Stassfurt, Stachen, Germany
sodium reacts vigorously with chlorine to make sodium chloride
2Na + Cl2 --> 2NaCl
