SHAPE OF MOLECULES Flashcards
1
Q
what is VSEPR number 1?
A
- electrons pairs repel each other
- both bonding pairs and lone pairs repel each other
2
Q
what is VSEPR number 2
A
- electron pairs arrange themselves to be as far apart as possible
- this allows minimum repulsion
3
Q
what is VSEPR number 3
A
- lone pairs repel more strongly than bonding pairs
4
Q
what is the order of repulsion STRONGEST TO WEAKEST
A
LP - LP
LP - BP
BP - BP
5
Q
what shape has 2 bonding pairs and 0 lone pairs
A
linear
180*
6
Q
what shape has 3 bonding pairs and 0 lone pairs
A
- trigonal planar
- 120*
7
Q
what shape has 2 bonding pairs and 1 lone pair
A
bent
<120*
8
Q
what shape has 4 bonding pairs and 0 lone pairs
A
- tetrahedral
- 109.5*
9
Q
what shape has 3 bonding pairs and 1 lone pair
A
trigonal pyramidal
107*
10
Q
what shape has 2 bonding pairs and 2 lone pairs
A
bent
104.5
11
Q
what shape has 5 bonding pairs and 0 lone pairs
A
- trigonal bypyramidal
120 and 90
12
Q
A
