Santa Monica College
Chemistry 11
Name:
Date:
Lab Section:
Exercise: VSEPR Theory and the Shapes of Molecules
Instructions: Complete the tables in this exercise for each molecule or ion. For the Lewis
Structures, bonds are represented by lines and lone pairs should be clearly shown as dots. If
appropriate, all resonance structures must be shown. Perspective drawings must be carefully
executed so that an observer can easily recognize the depicted geometry.
HCN
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
CH3OH
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
VSEPR Theory and the Shapes of Molecules
Page 1 of 6
Santa Monica College
Chemistry 11
SeCl6
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
NO2-1
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
OCS
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
VSEPR Theory and the Shapes of Molecules
Page 2 of 6
Santa Monica College
Chemistry 11
XeBr2
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
TeF5-1
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
HCO2-1
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
VSEPR Theory and the Shapes of Molecules
Page 3 of 6
Santa Monica College
Chemistry 11
SF4
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
KrCl4
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
C2F2
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
VSEPR Theory and the Shapes of Molecules
Page 4 of 6
Santa Monica College
Chemistry 11
IBr3
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
N2H4
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
H2SO3 (each H is attached directly to an O)
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
VSEPR Theory and the Shapes of Molecules
Page 5 of 6
Santa Monica College
Chemistry 11
PCl2-1
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
HNCO (H is attached directly to N)
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
AsF5
1. Lewis Structure
2. Perspective drawing
3. Steric Number of central 4. # of atoms bonded to
5. # of lone electron pairs
atom
central atom
on central atom
7. Molecular geometry
8. Bond angles
9. Hybridization of central
6. Electronic geometry
10. Molecular polarity
atom
VSEPR Theory and the Shapes of Molecules
Page 6 of 6