Covalent Bonds

What are covalent bonds?

  1. Electrons are shared rather than transferred
  2. Generally bonding between non-metals is covalent and bonding between a metal and non-metal is ionic
    1. However, ions with +3 or +4 charges form polar covalent bonds
  3. 2 shared electrons = single bond
    1. Double bond = 4 electrons shared
    2. Triple bond = 6 electrons shared
  4. The bond results from a balance between the attraction between the nucleus and electrons and the repulsion of the two nuclei
  5. The covalent bond is said to be directional
    1. It’s easier to understand this if you know that ionic bonds are non-directional.  Ionic substances don’t exist as discrete molecules but as a bunch of ions packed together in a way that minimizes repulsion between like charges – a crystal lattice
Naming Inorganic Covalent Compounds.doc
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Covalent Bonding Notes.doc
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Lewis Structure.doc
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VSEPR Geometry.doc
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Carbon Allotropes.ppt
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