Molecular geometry

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Chemistry

A-Level Chemistry

OCR

Foundations in Chemistry

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7 Terms

1
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Linear

Bonding pairs: 2

Lone pairs: 0

Bond angle: 180o

Example:

<p>Bonding pairs: 2</p><p>Lone pairs: 0</p><p>Bond angle: 180<sup>o</sup></p><p>Example:</p>
2
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Bent

Bonding pairs: 2

Lone pairs: 2

Bond angle: 104.5o

Example:

<p>Bonding pairs: 2</p><p>Lone pairs: 2</p><p>Bond angle: 104.5<sup>o</sup></p><p>Example:</p>
3
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Trigonal planar

Bonding pairs: 3

Lone pairs: 0

Bond angle: 120o

Example:

<p>Bonding pairs: 3</p><p>Lone pairs: 0</p><p>Bond angle: 120<sup>o</sup></p><p>Example:</p>
4
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Trigonal pyramidal

Bonding pairs: 3

Lone pairs: 1

Bond angle: 107o

Example:

<p>Bonding pairs: 3</p><p>Lone pairs: 1</p><p>Bond angle: 107<sup>o</sup></p><p>Example:</p>
5
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Tetrahedral

Bonding pairs: 4

Lone pairs: 0

Bond angle: 109.5o

Example:

<p>Bonding pairs: 4</p><p>Lone pairs: 0</p><p>Bond angle: 109.5<sup>o</sup></p><p>Example:</p>
6
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Trigonal bipyramidal

Bonding pairs: 5

Lone pairs: 0

Bond angle: 90o and 120o

Example:

<p>Bonding pairs: 5</p><p>Lone pairs: 0</p><p>Bond angle: 90<sup>o</sup> and 120<sup>o</sup></p><p>Example:</p>
7
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Octahedral

Bonding pairs: 6

Lone pairs: 0

Bond angle: 90o

Example:

<p>Bonding pairs: 6</p><p>Lone pairs: 0</p><p>Bond angle: 90<sup>o</sup></p><p>Example:</p>

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