Shapes of molecules

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Last updated 1:50 PM on 5/27/26
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8 Terms

1
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What reduction in bond angles do lone pairs of electrons cause?

2.5*

2
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What is the shape and bond angle of a molecule with…

Bonded pairs = 2

Lone pairs = 0

(+ is it symmetrical / polar)

  • Linear

  • 180*

  • Symmetrical (non-polar)

<ul><li><p>Linear </p></li><li><p>180* </p></li><li><p>Symmetrical (non-polar)</p></li></ul><p></p>
3
New cards

What is the shape and bond angle of a molecule with…

Bonded pairs = 3

Lone pairs = 0

(+ is it symmetrical / polar)

  • Trigonal planar 

  • 120*

  • Symmetrical (non-polar)

<ul><li><p>Trigonal planar&nbsp;</p></li><li><p>120*</p></li><li><p>Symmetrical (non-polar)</p></li></ul><p></p>
4
New cards

What is the shape and bond angle of a molecule with…

Bonded pairs = 4

Lone pairs = 0

(+ is it symmetrical / polar)

  • Tetrahedral 

  • 109.5

  • Symmetrical (non-polar)

<ul><li><p>Tetrahedral&nbsp;</p></li><li><p>109.5</p></li><li><p>Symmetrical (non-polar)</p></li></ul><p></p>
5
New cards

What is the shape and bond angle of a molecule with…

Bonded pairs = 5

Lone pairs = 0

(+ is it symmetrical / polar)

  • Trigonal bipyramidal 

  • 120* and 90*

  • Symmetrical (non-polar)

<ul><li><p>Trigonal bipyramidal&nbsp;</p></li><li><p>120* and 90*</p></li><li><p>Symmetrical (non-polar)</p></li></ul><p></p>
6
New cards

What is the shape and bond angle of a molecule with…

Bonded pairs = 6

Lone pairs = 0

(+ is it symmetrical / polar)

  • Octahedral 

  • 90*

  • Symmetrical (non-polar)

<ul><li><p>Octahedral&nbsp;</p></li><li><p>90* </p></li><li><p>Symmetrical (non-polar)</p></li></ul><p></p>
7
New cards

What is the shape and bond angle of a molecule with…

Bonded pairs = 3

Lone pairs = 1

  • Pyramidal 

  • 107*

<ul><li><p>Pyramidal&nbsp;</p></li><li><p>107*</p></li></ul><p></p>
8
New cards

What is the shape and bond angle of a molecule with…

Bonded pairs = 2

Lone pairs = 2

  • Bent 

  • 104.5*

<ul><li><p>Bent&nbsp;</p></li><li><p>104.5*</p></li></ul><p></p>