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Candice Finch Jan Spaulding Emily Markovitz

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Presentation on theme: "Candice Finch Jan Spaulding Emily Markovitz"— Presentation transcript:

1 Candice Finch Jan Spaulding Emily Markovitz
Molecular Geometry Candice Finch Jan Spaulding Emily Markovitz

2 Gumdrops and Toothpicks
Create 5 molecular structures 3 atoms, 4 atoms, 5 atoms, 6 atoms, 7 atoms Toothpicks=bonds Gumdrops=atoms Must have one gumdrop in the middle

3 Websites Platonic Solids ChemThink
  ChemThink You may be prompted to download Flash in order to view the website. This does not take long. Instructions Not Registered? Code Login Covalent Bonding Molecular Shapes Tutorial

4 Introduction A A A A A Valence Shell Electron Pair Repulsion (VSEPR)
Theory used to predict and explain the shapes of covalently-bound molecules. A A A A A

5 Which shape matches your molecule with 3 atoms?
Triangle Line Tetrahedron Octahedron Triangular Bipyramidal

6 3 Atom Group Questions What are the angles between the bonds?
What geometric shape does this molecular structure resemble and what is the angle for that particular geometric shape?

7 Bonding vs. Nonbonding Electron Pairs

8 Three and Four Atom Molecules
Total Electron Pairs Bonding Pairs Nonbonding Pairs Molecular Geometry 2 Linear 3 Trigonal Planar 1 Bent Linear Trigonal Planar Bent Benjah-bmm27. (2010). VSEPR theory. Retrieved on July 26, 2010 from Wikipedia:

9 Which shape matches your molecule with 4 atoms?
Triangle Line Tetrahedron Octahedron Triangular Bipyramidal

10 Five Atom Molecules Tetrahedral Trigonal Pyramidal Bent
Total Electron Pairs Bonding Pairs Nonbonding Pairs Molecular Geometry 4 Tetrahedral 3 1 Trigonal pyramidal 2 Bent Tetrahedral Trigonal Pyramidal Bent Benjah-bmm27. (2010). VSEPR theory. Retrieved on July 26, 2010 from Wikipedia:

11 Which shape matches your molecule with 5 atoms?
Triangle Line Tetrahedron Octahedron Triangular Bipyramidal

12 5 Atom Group Questions What are the angles between the bonds?
What shape does this molecular structure resemble?

13 Six Atom Molecules Trigonal Bipyramidal Seesaw T-shaped Linear
Total Electron Pairs Bonding Pairs Nonbonding Pairs Molecular Geometry 5 Trigonal Bipyramidal 4 1 Seesaw 3 2 T-shaped Linear Trigonal Bipyramidal Seesaw T-shaped Linear Benjah-bmm27. (2010). VSEPR theory. Retrieved on July 26, 2010 from Wikipedia:

14 Which shape matches your molecule with 6 atoms?
Triangle Line Tetrahedron Octahedron Triangular Bipyramidal

15 Seven Atom Molecules Square Pyramidal Square Planar Octahedral
Total Electron Pairs Bonding Pairs Nonbonding Pairs Molecular Geometry 6 Octahedral 5 1 Square Pyramidal 4 2 Square Planar Square Pyramidal Square Planar Octahedral Benjah-bmm27. (2010). VSEPR theory. Retrieved on July 26, 2010 from Wikipedia:

16 Which shape matches your molecule with 7 atoms?
Triangle Line Tetrahedron Octahedron Triangular Bipyramidal

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