free radical reactions - Free Radical Reactions This...

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Br Cl H 3 C CH 3 O H 3 C C CH 3 CH 3 Free Radical Reactions This handout is meant to help you with a basic description of free radical reactions. Although we normally would have discussed this material in class, We missed a class due to the hurricane. Please read Chapter 9 of your text and use this handout as a guide to what I consider important information. What is a free radical? It is an atom or group of atoms that contain a single unshared, unpaired electron. An example of a free radical is a halogen atom, such as Cl or Br. Chlorine and bromine normally occur as diatomic molecules with a pair of electrons shared between the two atoms. I one breaks the bond between to chlorine atoms ( a photon of UV light can do this ), 2 chlorine atoms are produced. Each of these atoms contains seven electrons in the valence shell; 3 pairs and one unpaired electron. This makes a chlorine atom a free radical. Other free radicals include carbon and oxygen free radicals, some of which are shown below. Halogen and oxygen free radicals are often drawn without the electron
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