VSEPR Shapes - PowerPoint PPT Presentation

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VSEPR Shapes
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VSEPR Shapes

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  1. VSEPR Shapes

  2. VSEPR - Shapes of molecules are determined by the repulsion of areas of electron density

  3. Areas of Electron Density – bonds and lone pairs

  4. Lone Pair – paired electrons that are NOT shared (bonded)

  5. CO2 2 0 Let’s draw the Lewis structure and build CO2 . . . . . . . . .  . . . . . . . . C O=C=O O O . . . . . . .

  6. 3 0 AlH3 Let’s draw the Lewis structure and build AlH3 . . . . Al H H H–Al–H .  . H H

  7. 4 0 CH4 Let’s draw the Lewis structure and build CH4 H . . . H . . H C H H–C–H  . . . H H

  8. 4 1 NH3 . . Let’s draw the Lewis structure and build NH3 . . . . N . .  H–N–H H . . H H H

  9. 4 2 H2O Let’s draw the Lewis structure and build H2O . . . . . H–O–H  H . . . . O . . . H

  10. Lab Time • Get into groups of 2-4 • Do VSEPR Shapes Lab Stations

  11. Independent Practice • Finish VSEPR Shapes Individual Practice