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AS Chemistry > Shapes of Molecules > Flashcards

Shapes of Molecules Flashcards

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1
Q

What shape does a molecule with 4 bonded pairs and 0 lone pairs make?

A

Tetrahedral

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2
Q

What are the lone pairs on a Tetrahedral molecule?

A

0

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3
Q

What are the bonded pairs on a Tetrahedral shape?

A

4

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4
Q

What is the bond angle on a Tetrahedral shape?

A

109.5

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5
Q

Give an example of a Tetrahedral molecule.

A

Methane.

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6
Q

What shape does a molecule with 3 bonded pairs and 0 lone pairs make?

A

Trigonal Planar

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7
Q

What are the lone pairs on a Trigonal Planar molecule?

A

0

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8
Q

What are the bonded pairs on a Trigonal Planar molecule?

A

3

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9
Q

What is the bond angle on a Trigonal Planar molecule?

A

120

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10
Q

What shape does a molecule with 2 Bonded pairs and no lone pairs have?

A

Linear

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11
Q

What are the lone pairs on a Linear molecule?

A

0

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12
Q

What are the bonded pairs on a Linear molecule?

A

2

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13
Q

What is the bond angle for a Linear molecule?

A

180

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14
Q

What shape does a molecule with 6 bonded pairs and no lone pairs take?

A

Octahedral

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15
Q

How many lone pairs are on a Octahedral shape?

A

0

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16
Q

How many bonded pairs are on a Octahedral molecule?

A

6

17
Q

What is the bond angle for Octahedral molecules?

A

90

18
Q

What shape does a molecule with 3 bonded pairs and a lone pair take?

A

Pyramidal

19
Q

How many lone pairs on a Pyramidal shape?

A

1

20
Q

How many bonded pairs on a Pyramidal shape?

A

3

21
Q

What shape would a molecule with 2 bonded and 2 lone pairs take?

A

Non linear

22
Q

How many lone pairs are on a Non linear molecule?

A

2

23
Q

How many bonded pairs are on a Non linear molecule?

A

2

24
Q

Give an example of a Non linear molecule

A

Water

25
Q

What does VSEPR stand for?

A

Valence Shell Electron Pair Repulsion Theory

26
Q

What is the VSEPR theory?

A

That electron pairs all have negative charges and therefore repel.
All bonding pairs repel equally,
but lone pairs repel more.

27
Q

How much does each bond pair reduce the bond angle?

A

2.5

AS Chemistry (14 decks)

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