Shapes of Molecules

Question 1

2 Bond Pairs
0 Lone Pairs

Shape and Angle?

Answer 1

LINEAR

180°

Question 2

3 Bond Pairs
0 Lone Pairs

Shape and Angle?

Answer 2

TRIGONAL PLANAR

120°

Question 3

4 Bond Pairs
0 Lone Pairs

Shape and Angle?

Answer 3

TETRAHEDRAL

109.5°

Question 4

5 Bond Pairs
0 Lone Pairs

Shape and Angle?

Answer 4

TRIGONAL BYPIRAMIDAL

90 AND 120°

Question 5

6 Bond Pairs
0 Lone Pairs

Shape and Angle?

Answer 5

OCTAHEDRAL

90°

Question 6

Ammonia (NH₃)

3 Bond Pairs
1 Lone Pairs

Shape and Angle?

Answer 6

TRIGONAL PYRAMIDAL

107°

(N-H bonds pushed closer together)

Lone pairs not included in shape.

LP-LP > BP - BP

Question 7

WATER H2O

2 Bond Pairs
2 Lone Pairs

Shape and Angle?

Answer 7

ANGULAR

104.5°

LP-LP repulsions > LP-BP repulsions > BP-BP repulsion

O-H bonds are pushed closer together.

Question 8

2 Bond Pairs
0 Lone Pairs

Shape and Angle?

Answer 8

°

Question 9

XENON TETRAFLUORIDE

4 Bond Pairs
2 Lone Pairs

Shape and Angle?

Answer 9

SQUARE PLANAR

90°

Question 10

In Irregular Molecules,

Name the order in which repulsions are strongest to weakest.

Answer 10

LP-LP repulsions > LP-BP repulsions > BP-BP repulsion