Memory Quiz #4 - VSEPR Theory

Question 1

molecular geometry: linear

Answer 1

electron groups: 2
bonding groups: 2
lone pairs: 0
electron geometry: linear
angle between electron groups: 180
EX:
O = C = O

Question 2

molecular geometry: trigonal planar

Answer 2

electron groups: 3
bonding groups: 3
lone pairs: 0
electron geometry: trigonal planar
angle between electron groups: 120
EX:
O
||
H — C — H
(triangle)

Question 3

molecular geometry: bent

Answer 3

electron groups: 3
bonding groups: 2
lone pairs: 1
electron geometry: trigonal planar
angle between electron groups: 120
EX:
O = S — O
(upside down, lopsided mickey)

Question 4

molecular geometry: tetrahedral

Answer 4

electron groups: 4
bonding groups: 4
lone pairs: 0
electron geometry: tetrahedral
angle between electron groups: 109.5
EX:
H
|
H — C — H
|
H
(tetrahedron-triangular pyramid)

Question 5

molecular geometry: trigonal pyramid

Answer 5

electron groups: 4
bonding groups: 3
lone pairs: 1
electron geometry: tetrahedral
angle between electron groups: 109.5
EX:
H — N — H
|
H
(tetrahedral without the top)

Question 6

molecular geometry: bent (even)

Answer 6

electron groups: 4
bonding groups: 2
lone pairs: 2
electron geometry: tetrahedral
angle between electron groups: 109.5
EX:
H — O — H