Shapes of molecules

Question 1

what are bonding pairs?

Answer 1

the two shared electrons in a covalent bond

Question 2

what are lone pairs?

Answer 2

two electrons in a pair not involved in bonding (also known as non-bonding pairs)

Question 3

what is the shape of a molecule dependent on?

Answer 3

the number of electron pairs which repel each other as far as possible

Question 4

how to electron pairs behave with each other in a molecule?

Answer 4

they repel each other as far as possible

Question 5

why do lone pairs repel more than bonding pairs?

Answer 5

they are more compact

Question 6

how do lone pairs affect the bond angles?

Answer 6

reduce to a small extent (approx 2.5 degrees)

Question 7

2 bonding
0 lone

Answer 7

linear shape, 180 degrees

Question 8

3 bonding
0 lone

Answer 8

trigonal planar shape, 120 degrees

Question 9

2 bonding
1 lone

Answer 9

bent (v-shape), 118 degrees

Question 10

4 bonding
0 lone

Answer 10

tetrahedral shape, 109.5 degrees

Question 11

3 bonding
1 lone

Answer 11

trigonal pyramidal shape, 107 degrees

Question 12

2 bonding
2 lone

Answer 12

bent (v-shape), 104.5 degrees

Question 13

5 bonding
0 lone

Answer 13

trigonal bipyramidal shape, 120 and 90 degrees

Question 14

4 bonding
1 lone

Answer 14

see-saw shape, 89 and 119 degrees

Question 15

3 bonding
2 lone

Answer 15

T-shape, 89 degrees

Question 16

6 bonding
0 lone

Answer 16

octahedral shape, 90 degrees

Question 17

5 bonding
1 lone

Answer 17

square pyramid shape, 89 degrees

Question 18

4 bonding
2 lone

Answer 18

square planar shape, 90 degrees