4.7. Discuss the shape of the following molecules using the VSEPR model:
BeCl2, BCl3, SiCl4, AsF5, H2S, PH3.
4.7. Discuss the shape of the following molecules using the VSEPR model:
BeCl2, BCl3, SiCl4, AsF5, H2S, PH3.
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1 Answer
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4.7
Molecule
Number of electron pairs around central atom
Type
Molecular geometry
Bond angles
BeCl2?
2
AB2
Linear
180o
BCl3?
3
AB3
trigonal planar
120o
SiCl4?
4
AB4
tetrahedral
109.5o
AsF5?
5
AB5
trigonal bipyramidal
three 120 o, two 90 o
H2?S
6
AB2L2
V-shaped/bent
92 o
PH3?
5
AB3L
trigonal pyramidal
93.5o
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