1
Q
VESPER
A
Valence Shell Electron Pair Repulsion
2
Q
Electron pairs repel because
A
repel each other to get as far away as possible from each other
3
Q
Number of Electron Pairs =
A
(Group number of central atom + number of bonded atoms - charge ) / 2
4
Q
Liner Shape
A
180 bond angle
5
Q
Trigonal Planar
A
!20 bond angle
6
Q
Tetrahedral
A
109.5 bond angle
7
Q
Trigonal Bipyrimidal
A
120 and 90 bond angle
8
Q
Octahedral
A
90 bond angle
9
Q
For every lone pair
A
subtract 2.5 bond angle off of the original bond angle
10
Q
bent shape
A
- 5 bond angle
104. 5 bond angle
11
Q
trigonal Pyramidal
A
107 bond angle
12
Q
2 molecules can join together by
A
hydrogen bonding if a lone pair is present
Chemistry
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