6.1 Shapes of molecules

Question 1

What is the electron pair repulsion theory?

Answer 1

Pairs of electrons around a central atom repel eachother, so they move as far apart as possible to minimise this repulsion.

Question 2

Name of shape with 2 areas of electron density?

Answer 2

linear

Question 3

Angle formed in linear shape

Answer 3

180

Question 4

Name of shape with 3 electron densities

Answer 4

trigonal planar

Question 5

Angle formed in shapes with 3 electron densities

Answer 5

120

Question 6

Name of shape with 4 electron densities

Answer 6

Tetrahedral

Question 7

Angle in shapes with 4 electron densities

Answer 7

109.5

Question 8

Name of shape with 5 electron densities

Answer 8

Trigonal Bipyramidal

Question 9

Angle of trigonal bipyramidal shape?

Answer 9

120

Question 10

Name of shape with 6 electron densities?

Answer 10

octahedral

Question 11

Angle of shape with 6 electron densities?

Answer 11

90