Electron repulsion

Question 1

How repulsion works

Answer 1

The force of repulsion depends on the nature of the pair of electrons. The order is:

Lone pair - Lone pair > Lone pair - bond pair > bond pair - bond pair

So, the force of repulsion of lone pairs is stronger than bond pairs

Question 2

Trigonal planar

Answer 2

• 3 electron bonding pairs
• 0 lone pairs
• 120° bond angle
• Examples

Question 3

Linear

Answer 3

• 2 Bonding pairs of electrons
• 2 lone pairs
• 180° bond angle
• Examples

Question 4

Bent (V - shape)

Answer 4

• 2 Bonding pairs of electrons
• 2 lone pairs
• 104.5° bond angle
• Examples

Question 5

Tetrahedral

Answer 5

• 4 Bonding pairs of electrons
• 0 lone pairs
• 109.5° bond angle
• Examples

Question 6

Triangular pyramidal

Answer 6

• 3 Bonding pairs of electrons
• 1 lone pair
• 107° bond angle
• Examples

Question 7

Triangular bipyramidal

Answer 7

• 5 Bonding pairs of electrons
• 0 lone pairs
• 120° and 90°
• Examples

Question 8

Octahedral

Answer 8

• 6 Bonding pairs of electrons
• 0 lone pairs
• 90° bond angles
• Exmples

Question 9

Square planar

Answer 9

• 4 Bonding pairs of electrons
• 2 lone pairs
• 90° bond angles
• Examples