Drawing Electron Dot Diagram

Rules:
-The nuclear is represented by the atomic symbol
-For individual element determine the number of valence electrons
-Each orbit get 1e before they pair up
-Each bond represent 2e
-All Valence electrons must be used
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Organic Compound
Single bonded:
C2H6
C:4e- H:1e-

   








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Double bonded
CO2                 ..    ..            ..  ..
C:4-               :O::C::O:  ---------:O=C=O:
O:6-
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 Triple bonded
N2
N:5e-                ......        .._..
                      N::N -------- N=N
                     
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Lewis Structure
-H F are never at the center
-place metal in the center if possible
-single atom in the center
-atom needs most e-in the center

e.g      .. ..
N2H2   H:N::N:H              H-N=N-H
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Polyatomic
 NH4 +       H       +      H
             ..             |
       [  H: N :H ]       H-N-H
             ..             |
             H              H
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