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Chemistry - Y12 > 1.3 Bonding - Shapes of molecules > Flashcards

1.3 Bonding - Shapes of molecules Flashcards

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1
Q

What is the shape and bond angle for: 2 bonding pairs?

A

Linear
180°

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2
Q

What is the shape and bond angle for: 3 bonding pairs?

A

Trigonal Planar
120°

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3
Q

What is the shape and bond angle for: 4 bonding pairs?

A

Tetrahedral
109.5°

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4
Q

What is the shape and bond angle for: 5 bonding pairs?

A

Trigonal Bipyramidal
120°, 90°, and 180°

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5
Q

What is the shape and bond angle for: 6 bonding pairs?

A

Octahedral
90°

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6
Q

What is the shape and bond angle for: 2 bonding pairs & 1 lone pair?

A

V-Shaped
117.5°

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7
Q

What is the shape and bond angle for: 3 bonding pairs & 1 lone pair?

A

Pyramidal
107°

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8
Q

What is the shape and bond angle for: 2 bonding pairs & 2 lone pairs?

A

V-Shaped
104.5°

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9
Q

What is the shape and bond angle for: 4 bonding pairs & 1 lone pair?

A

See-Saw
119° and 89°

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10
Q

What is the shape and bond angle for: 3 bonding pairs & 2 lone pairs?

A

Trigonal Planar
120°

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11
Q

What is the shape and bond angle for: 5 bonding pairs & 1 lone pair?

A

Square Pyramidal
89°

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12
Q

What is the shape and bond angle for: 4 bonding pairs & 2 lone pairs?

A

Square Planar
90°

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13
Q

What is the shape and bond angle for: 2 bonding pairs & 3 lone pairs?

A

Linear
180°

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14
Q

How many bonding pairs and lone pairs are there in a linear shape?

A

2 Bonding pairs
0 Lone pairs

OR

2 Bonding pairs
3 Lone pairs

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15
Q

How many bonding pairs and lone pairs are there in a trigonal planar shape?

A

3 Bonding pairs
0 Lone pairs

OR

3 Bonding Pairs
2 Lone Pairs

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16
Q

How many bonding pairs and lone pairs are there in a tetrahedral shape?

A

4 Bonding pairs
0 Lone pairs

17
Q

How many bonding pairs and lone pairs are there in a trigonal bipyramidal shape?

A

5 Bonding pairs
0 Lone pairs

18
Q

How many bonding pairs and lone pairs are there in a octahedral shape?

A

6 Bonding pairs
0 Lone pairs

19
Q

How many bonding pairs and lone pairs are there in a v-shape molecule?

A

2 Bonding pairs
1 Lone pair

OR

2 Bonding pairs
2 Lone pairs

20
Q

How many bonding pairs and lone pairs are there in a pyramidal shape?

A

3 Bonding pairs
1 Lone pair

21
Q

How many bonding pairs and lone pairs are there in a see-saw shape?

A

4 Bonding pairs
1 Lone pair

22
Q

How many bonding pairs and lone pairs are there in a square pyramidal shape?

A

5 Bonding pairs
1 Lone pair

24
Q

How many bonding pairs and lone pairs are there in a square planar shape?

A

4 Bonding pairs
2 Lone pairs

25
Q

Explain how lone pairs of electrons influence the shapes and bond angles?

A
  • Lone pairs repel more than bonding pairs
  • This decreases the bond angles

Chemistry - Y12 (18 decks)

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