Molecular Shapes

1
Molecular Shapes

• Unit 6 Part II

2
Molecular Shapes

• To find a molecules shape
• Draw the Lewis structure.
• Count the bonds.
• Count the unshared pairs.
• Determine the shape.

3
Molecular Shapes

• There are 5 shapes you will need to know
• Linear
• 1 bond

4
Molecular Shapes

• 2. Bent
• 2 bonds
• 2 unshared pairs

5
Molecular Shapes

• 3. Trigonal Pyramid
• 3 bonds
• 1 unshared pair

6
Molecular Shapes

• Trigonal Planar
• 3 bonds
• No unshared pairs

7
Molecular Shapes

• 5. Tetrahedral
• 4 bonds
• no unshared pairs

8
Molecular Shapes

• HF

9
Molecular Shapes

• CH4

10
Molecular Shapes

• H2O

11
Molecular Shapes

• NH3

12
Molecular Shapes

• BH3