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Y12 AS Chemistry > Shapes of molecules > Flashcards

Shapes of molecules Flashcards

1
Q

If a molecule has 2 bonding pairs and 0 lone pairs, what is the name of the shape?

A

Linear

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2
Q

What are the bond angles in a linear molecule?

A

180

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3
Q

Give an example of a linear shape molecule?

A

BeCl2

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4
Q

How many bonding pairs and lone pairs does a triagonal planar have?

A

3 bonding pairs

0 lone pairs

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5
Q

What is the bond angle in a triagonal planar? Is it 104, 90 or 120 degrees?

A

120

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6
Q

Give an example of a triagonal planar shape?

A

Boron trifluoride

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7
Q

What shape molecule is it when there are 2 bonding pairs and one lone pair?

A

non linear/bent

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8
Q

What are the bonding pairs and lone pairs in a tetrahedral shape molecule?

A

4 bonding pairs

0 lone pairs

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9
Q

What is the bond angle in a tetrahedral shape?

A

109.5

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10
Q

Give an example of a tetrahedral molecule?

A

Ammonium ion

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11
Q

How many bonding pairs are in a triagonal pyramidal?

A

3

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12
Q

How many lone pairs are there in a triagonal pyramidal?

A

1

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13
Q

Which shape molecule has 2 bonding pairs as well as 2 lone pairs and what is the bond angle?

A

Non linear

104.5 degrees

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14
Q

What is an example of a non linear molecule with 104.5 degrees bond angles?

A

Water, H2O

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15
Q

How many bonding pairs does a trigonal bipyramidal shape have?

A

5

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16
Q

Where do the bond angles occur in a triagonal bipyramidal?

A

120 between 3 atoms

90 between the other 2

17
Q

What is the name of the shape when the molecule contains 4 bonding pairs and 1 lone pair?

A

see saw

18
Q

What are the bond angles in a see saw shape molecule?

A

102

86.5

19
Q

Does a T shaped molecule contain two or three bonding pairs?

A

Three

20
Q

How many lone pairs of electrons are there in a T shaped molecule?

A

2

21
Q

What bond angle is there inside a t shaped molecule?

A

87.5 degrees

22
Q

What will a molecule with 6 bonding pairs be called?

A

Octahedral

23
Q

What will all of the bond angles be in an octahedral shape?

A

they will all be 90 degrees

24
Q

How many bonding and lone pairs of electrons does a square pyramidal have? What is the bond angle?

A

5 bonding pairs
1 lone pair
90 degrees

25
Q

What will the shape of a molecule with 4 bonding pairs and 2 lone pairs?

A

square planar

26
Q

What angle is there in a square planar?

A

90 degrees

Y12 AS Chemistry (48 decks)

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