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Teri C No. Basic Geometry 0 Lone Pair 1 Lone Pair 2 Lone Pairs 3 Lone Pairs

The document discusses molecular geometry and electron arrangements. It provides a table outlining molecular shapes based on the number of atoms bonded to the central atom and lone pairs. Example molecules are given for different geometries including linear, bent, trigonal planar, tetrahedral and other more complex 3D shapes.

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447 views5 pages

Teri C No. Basic Geometry 0 Lone Pair 1 Lone Pair 2 Lone Pairs 3 Lone Pairs

The document discusses molecular geometry and electron arrangements. It provides a table outlining molecular shapes based on the number of atoms bonded to the central atom and lone pairs. Example molecules are given for different geometries including linear, bent, trigonal planar, tetrahedral and other more complex 3D shapes.

Uploaded by

Shamsi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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teri

Basic geometry
c 1 lone pair 2 lone pairs 3 lone pairs
0 lone pair
No.

2      
Linear (CO2)

3    

Trigonal planar (BCl3)
Bent (SO2)

4  

Bent (H2O)
Tetrahedral (CH4) Trigonal pyramidal (NH3)

Trigonal bipyramidal (PCl5) Seesaw (SF4) T-shaped (ClF3)


Linear (I−3)

6  

Octahedral (SF6) Square pyramidal (BrF5) Square planar (XeF4)


7  

Pentagonal bipyramidal (IF7) Pentagonal pyramidal (XeOF−5) Pentagonal planar (XeF−5)

Molecule Electron
Shape Geometry‡ Examples
Type arrangement†

AX2E0 Linear ,  , 
BeCl2 HgCl2 CO2

AX2E1 Bent NO−2, SO2, O3, CCl2

AX2E2 Bent H2O, OF2

AX2E3 Linear XeF2 , I−3, XeCl2

AX3E0 Trigonal planar BF3, CO2−3, NO−3, SO3

AX3E1 Trigonal pyramidal , 


NH3 PCl3

AX3E2 T-shaped , 
ClF3 BrF3
AX4E0 Tetrahedral CH4 , PO3−4, SO2−4, ClO−4, TiCl4, XeO4

AX4E1 Seesaw SF4

AX4E2 Square planar XeF4

AX5E0 Trigonal bipyramidal PCl5

AX5E1 Square pyramidal ,  , 


ClF5 BrF5 XeOF4

AX5E2 Pentagonal planar XeF−5

AX6E0 Octahedral , 
SF6 WCl6

AX6E1 Pentagonal pyramidal XeOF−5, IOF2−5 [7]

Pentagonal
AX7E0 IF7
bipyramidal
AX8E0 Square antiprismatic IF−8, ZrF4−8, ReF−8

Tricapped trigonal
prismatic
AX9E0 OR ReH2−9
capped square
antiprismatic

The basic shapes are shown in the left column of the figure below:
Figure 7: VSEPR shapes

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