VSEPR Theory

Question 1

What does VSEPR theory stand for?

Answer 1

valence shell electron pair repulsion theory

Question 2

VSEPR theory

Answer 2

electron domains around an atom repel each other non bonding (lone pairs) repel more than bonding pairs

Question 3

What effect does lone pairs have on bond angle?

Answer 3

pushes electrons closer by 2degrees

Question 4

2 electron domains

• 2 bonding electron domains
• 0 non-bonding electron domains

Answer 4

electron domain geometry: linear 180

molecular geometry: linear 180

Question 5

3 electron domains

• 3 bonding electron domains
• 0 non-bonding electron domains

Answer 5

electron domain geometry: planar triangular 120

molecular geometry: planar triangular 120

Question 6

3 electron domains

• 2 bonding electron domains
• 1 non-bonding electron domain

Answer 6

electron domain geometry: planar triangular 120

molecular geometry: v-shaped 117

Question 7

4 electron domains

• 4 bonding electron domains
• 0 non-bonding electron domains

Answer 7

electron domain geometry: tetrahedral 109.5

molecular geometry: tetrahedral 109.5

Question 8

4 electron domains

• 3 bonding electron domains
• 1 non-bonding electron domain

Answer 8

electron geometry: tetrahedral 109.5

molecular geometry: pyramidal 107

Question 9

4 electron domains

• 2 bonding electron domains
• 2 non-bonding electron domains

Answer 9

electron domain geometry: tetrahedral 109.5

molecular geometry: v-shaped 104

Question 10

linear drawing

Answer 10

Question 11

planar triangular drawing

Answer 11

Question 12

v-shaped drawing

Answer 12

Question 13

tetrahedral drawing

Answer 13

Question 14

pyramidal drawing

Answer 14