2.2.2.2 Shapes of molecules and ions

Question 1

1 bonded electron pairs around the central atom

Name of the shape and draw H2 shape

Answer 1

linear

H-H

Question 2

2 bonded electron pairs around the central atom

Name of the shape and draw CO2 shape + angel

Answer 2

linear

O=C=O (Angel 180 D)

Question 3

3 bonded electron pairs around the central atom

Name of the shape and draw BF3 shape + angel

Answer 3

Trigonal planar shape

Draw the shape + angel

Question 4

4 bonded electron pairs around the central atom

Name of the shape and draw CH4 shape + angel

Answer 4

Tetrahedral shape

Draw the shape + angel

Question 5

5 bonded electron pairs around the central atom

Name of the shape and draw PCl5 shape +angel

Answer 5

Trigonal bypiramid

Draw the shape + angel

Question 6

6 bonded electron pairs around the central atom

Name of the shape and draw SF6 shape +angel

Answer 6

Octahedral shape

Draw the shape + angel

Question 7

why does a lone pair repel more than a bonded pair?

Answer 7

A lone pair of electron is slightly more electron-dense than a bonded pair. Therefore a lone pair repels more than a bonded pair

Question 8

A molecule with one lone pair

Name of the shape and draw NH3 shape + angel

Answer 8

Pyramidal

Draw the shape + angel

Question 9

A molecule with two lone pairs

Name of the shape and draw H2O shape + angel

Answer 9

Non-Linear

Draw the shape + angel