3.5 shapes of simple molecules and ions Flashcards
1
Q
How can we work out the shape of a molecule?
A
Use the number of bond pairs and lone pair of electrons.
2
Q
BP = 2
LP = 0
A
Linear
- eg BeCl2
3
Q
BP = 3
LP = 0
A
Trigonal Planar
- eg BF3
4
Q
BP = 4
LP = 0
A
Tetrahedral
- eg CH4
5
Q
BP = 5
LP = 0
A
Trigonal Bipyramidal
- eg PCl5
6
Q
BP = 6
LP = 0
A
Octahedral
- eg SF6
7
Q
BP = 3
LP = 1
A
Pyramidal
- eg NH3
8
Q
BP = 2
LP = 2
A
Bent
- eg H2O
9
Q
BP = 3
LP = 2
A
Trigonal Planar
- eg ClF3
10
Q
BP = 4
LP = 2
A
Square Planar
- eg XeF4
