Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

OCR A-Level Chemistry > Unit 6 - Shapes Of Molecules And Intermolecular Forces > Flashcards

Unit 6 - Shapes Of Molecules And Intermolecular Forces Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

Which repels more strongly: lone pairs or bonded pairs?

A

Lone pairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

By how much is the bond angle reduced with each lone pair?

A

2.5°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What molecular shape consists of 1 bonded pair?

A

Linear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What molecular shape consists of 2 bonded pairs with no lone pairs?

A

Linear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What molecular shape consists of 2 bonded pairs with >0 lone pairs?

A

Non-linear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What molecular shape consists of 3 bonded pairs with no lone pairs?

A

Trigonal planar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What molecular shape consists of 3 bonded pairs with >0 lone pairs?

A

Pyramidal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What molecular shape consists of 4 bonded pairs with no lone pairs?

A

Tetrahedral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What molecular shape consists of 6 bonded pairs with no lone pairs?

A

Octahedral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the bond angle in a linear molecular shape?

A

180°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the bond angle in a trigonal planar molecular shape?

A

120°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the bond angle in a pyramidal molecular shape (1 lone pair)?

A

107

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the bond angle in a non-linear molecular shape?

A

1 lone pair - 107°

2 lone pairs - 104.5°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the bond angle of a tetrahedral molecular shape?

A

109.5°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the bond angle in a octahedral molecular shape?

A

90°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What 3 factors affect electronegativity?

A

Nuclear charges
Size
Shared pair may be closer to one nucleus than the other

17
Q

How is electronegativity measured?

A

The Pauling scale

18
Q

What increases across the periodic table?

A

Nuclear charge

19
Q

What decreases across the periodic table?

A

Atomic radius

20
Q

What type of elements have the most electronegative atoms?

A

Non-metals

21
Q

What type of elements have the least electronegative atoms?

A

Group 1 metals

OCR A-Level Chemistry (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions