Covalent Bonds
-electrons are shared between non-metals
-to draw Lewis Dot Diagram:
1. Add the valence e- in all atoms
2. Identify which atom can form the most number of bonds. This will be the central atom
3. Bonds between two atoms are represented by a e-. This represents 2e-
4. Any e- not creating bonds are placed in pairs around the remaining atoms
5. All valences levels must be filled, all electrons must be used
Double and Triple Bonds
- some compounds from more than one bond between two elements
http://www.youtube.com/watch?v=tOpke6cpqWY&feature=pyv&ad=4006919948&kw=covalent%20bonds
http://www.youtube.com/watch?v=mAjrnZ-znkY
Electronegativity
- atoms affinity for electrons
- electronegativity increase from left to right and from bottom to top
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