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Chemical bounds

  1. Sep 9, 2011 #1
    hello, to preview chemical bonds must be considered only the electrons in the last sublevel and not the electrons in all the level?
    for example my book talking of carbon sp hybridation say that we shouldn't expect it make 4 bounds but only 3, why if the carbon need exactly 4 electron to complete the level?

    thanks!
     
  2. jcsd
  3. Sep 9, 2011 #2

    Borek

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    Staff: Mentor

  4. Sep 11, 2011 #3
    What do you mean? Carbon is usually a sp3 hybrid. Thus it must make four bonds. You also said that you need to consider the outer sublevel. What do you mean?
     
  5. Sep 11, 2011 #4

    Borek

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    Staff: Mentor

    While in a way it can be true that sp3 is the most common carbon hybridization, it doesn't matter. When it is sp or sp2 it makes four bonds as well.
     
  6. Sep 20, 2011 #5
    Why in Wikipedia i read The valence bond theory would predict, based on the existence of two half-filled p-type orbitals, that C forms two covalent bonds ?
    According to the normal model Carbon need 4 electrons to complete the last level so is it wrong use this model?
    Do the bond are formed ONLY in the more external half-filled orbitals ?

    thank you
     
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