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Unit 1
1.4 bonding
Shapes of molecules
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Martha Stacey
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Cards (7)
Linear
e.g.
BeCl2
2
bonding pairs
0
lone pairs
2
electron pairs
180º
bond
trigonal planar
e.g
BF3
3 bonding pairs
0 lone pairs
3 electron pairs
120º
bond
tetrahedrol
e.g.
CH4
4
bonding pairs
0 lone pairs
4 electron pairs
109.5º
bond angle
trigonal bipyramid
eg.
PCl5
5 bonding pairs
0 lone pairs
5 electron pairs
120/90º
angle
octahedrol
e.g.
SF6
6 bonding pairs
0 lone pairs
6 electron pairs
90º
bond angle
trigonal pyramid
e.g.
NH3
3 bonding pairs
1
lone pair
4
electron pairs
109.5º
angle
bent
e.g.
H2O
2
bonding pairs
2
lone pairs
4
electron pairs
104.5º
angle
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