VSEPR Theory: The Five Basic Shapes

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Last updated 2:06 PM on 10/12/26
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7 Terms

1
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VSEPR Theory

To predict polarity:

<p>To predict polarity:</p>
2
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Electron Group

Lone pairs, single bonds, multiple bonds, and even single electrons repel one another through forces

<p>Lone pairs, single bonds, multiple bonds, and even single electrons repel one another through forces</p>
3
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Linear Geometry

180 degrees sp 2 electron groups

<p>180 degrees sp 2 electron groups</p>
4
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Trigonal Plannar Geometry

120° bond angle 3 electron groups sp2

<p>120° bond angle 3 electron groups sp2</p>
5
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Tetrahedral Geometry

109.5° angle 4 electron groups sp3

<p>109.5° angle 4 electron groups sp3</p>
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Trigonal Bipyramidal Geometry

- Central atom has 5 electron pairs

- Zero lone pairs

- Formed by 6 atoms

- Ex. PCl₅, PF₅

- sp3d

<p>- Central atom has 5 electron pairs</p><p>- Zero lone pairs</p><p>- Formed by 6 atoms</p><p>- Ex. PCl₅, PF₅</p><p>- sp3d</p>
7
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Octahedral Geometry

- Central atom has 6 electron pairs

- Zero lone pairs

- Formed by 7 atoms

- Ex. SF₆

` sp3d2

<p>- Central atom has 6 electron pairs</p><p>- Zero lone pairs</p><p>- Formed by 7 atoms</p><p>- Ex. SF₆</p><p>` sp3d2</p>