Covalent bonding

Key info for covalent bonding

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  • Created by: Ryan
  • Created on: 09-04-13 12:38
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  • Covalent bonding
    • Covalent bond is a very strong bond that is formed when electrons are shared
    • Occurs between non-metal atoms
    • Some have simple molecules e.g H2, Cl2 etc
      • Some have giant covalent structures e.g. diamond, silicon dioxide
    • A chlorine atom has 7 electrons in its outer shell. In order to bond with another chlorine atom, an electron from each atom is shared to give both chlorine atoms 8 electrons in their outer shell
    • There are usually weak forces of attraction between the molecules which means that these substances usually have low boiling and melting points
    • Giant molecular structures have very high melting and boiling pointss
      • Diamond forms 4 covalent bonds with other carbon atoms
      • Graphite only forms 3 covalent bonds with other carbon atoms


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