Lewis Dot for Compounds Shows how electrons are being shared. Rules: Same as ionic (need full outer shell) Follow octet rule
Valence “Jigsaw” One way to look at this is like a jigsaw puzzle In a jigsaw puzzle, the pieces fit together Each element is a piece of the puzzle Think of the valence electrons are the edges of the pieces. Vocab: Lone pair = Two dots or electrons not share. Shared = Where elements are connected to make compounds. Represented by a line. _____
Multiple Bonds A line may be used to represent shared electrons. Each line represents 2 e- 1 line = 2 e- 2 lines = 4 e- 3 lines = 6 e- 4 lines = 8 e- The most you can have is 4 lines. Octet rule.
Lewis Dot for water Molecular formula Lewis Dot formula Structural formula H2O H H O H O H
Lewis Dot for methane Molecular formula Lewis Dot formula Structural formula CH4 H C H H H
Lewis Dot for Phosphorus trichloride Molecular formula Lewis Dot formula Structural formula PCl3 P Cl Cl Cl