vsepr shapes
Post on 30-Dec-2015
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VSEPR Shapes
VSEPR - Shapes of molecules are determined by the repulsion of areas of electron density
Areas of Electron Density – bonds and lone pairs
Lone Pair – paired electrons that are NOT shared (bonded)
2 0 CO2
Let’s draw the Lewis structure and build CO2
O.... .. C
.. .. O.. .... O=C=O
.. ......
3 0 AlH3
Let’s draw the Lewis structure and build AlH3
H.
H.
Al. . .H. H–Al–H
H
4 0 CH4
Let’s draw the Lewis structure and build CH4
H.
H.
H..C... H. H–C–H
H
H
4 1 NH3
Let’s draw the Lewis structure and build NH3
H. H.
H. H–N–H
H
..N.. ...
4 2 H2O
Let’s draw the Lewis structure and build H2O
H.H. O... . .. H–O–H
..
..
Lab Time
• Get into groups of 2-4
• Do VSEPR Shapes Lab Stations
Independent Practice
• Finish VSEPR Shapes Individual Practice
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