The valence shell electron pair repulsion theory

Question 1

The valence shell electron pair repulsion theory (VSEPR) predicts

Answer 1

the shape and bond angles of molecules

Question 2

Electrons are negatively charged and will …. other electrons

Answer 2

repel

Question 3

In a molecule, the bonding pairs of electrons will repel other electrons around the

Answer 3

central atom forcing the molecule to adopt a shape in which these repulsive forces are minimised

Question 4

Valence shell electrons are those electrons that are found in the

Answer 4

outer shell

Question 5

Lone pair electrons repel each other …….. bonded pairs

Answer 5

more

Question 6

Repulsion between multiple and single bonds is treated the same as for repulsion between single bonds

Repulsion between pairs of double bonds ?

Answer 6

greater

Question 7

The most stable shape is adopted to

Answer 7

minimize the repulsion forces

Question 8

Different types of electron pairs have different repulsive forces

Lone pairs of electrons have a more

Answer 8

concentrated electron charge cloud than bonding pairs of electrons

Question 9

concentrated electron charge cloud than bonding pairs of electrons ……… to the central atom’s nucleus

Answer 9

wider and closer

Question 10

The order of repulsion is therefore:

Answer 10

one pair – lone pair > lone pair – bond pair > bond pair – bond pair