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VSEPR

theoretical model used in chemistry

VSEPR Geometries

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Valence shell electron pair repulsion (VSEPR) theory (1957) is a model in chemistry, which is used for predicting the shapes of individual molecules, based upon their extent of electron-pair electrostatic repulsion, determined using steric numbers.

2D

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Steric
No. 		Basic Geometry
0 lone pair 		1 lone pair 2 lone pairs 3 lone pairs 4 lone pairs
1  

linear

||   ||   ||   ||  
2  

linear

||  

linear

||   ||   ||  
3  

trigonal planar

||  

bent / angular

||  

linear

|| || 
4  

tetrahedral

||  

trigonal pyramid

||  

bent / angular

||  

linear

||  
5  

trigonal bipyramid

||  

sawhorse / seesaw

||  

t-shape

||  

linear

||  
6  

octahedral

||  

square pyramid

||  

square planar

||   ||  
7  

pentagonal bipyramidal

|| 

pentagonal pyramidal

||   ||   ||  


3D

edit
Steric
No. 		Basic Geometry
0 lone pair 		1 lone pair 2 lone pairs 3 lone pairs 4 lone pairs
1  

linear

||   ||   ||   ||  
2  

linear

||  

linear

||   ||   ||  
3  

trigonal planar

||  

bent / angular

||  

linear

||   ||  
4  

tetrahedral

||  

trigonal pyramid

||  

bent / angular

||  

linear

||  
5  

trigonal bipyramid

||  

sawhorse / seesaw

||  

t-shape

||  

linear

||  
6  

octahedral

||  

square pyramid

||  

square planar

||   ||  
7  

pentagonal bipyramidal

|| 

pentagonal pyramidal

||   ||   ||  
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