1
1 mark
Which type of bonding is described as the electrostatic attraction between positive ions and delocalised electrons?
dipole
hydrogen
ionic
metallic
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Metallic Bonding (Cambridge (CIE) AS Chemistry): Exam Questions
Exam code: 9701
30 mins12 questions
2
1 mark
Which solid contains only one type of bonding?
ammonium chloride
brass
ice
iodine
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3
1 mark
Which statement explains why solid copper conducts electricity?
Delocalised electrons can move through the lattice.
Positive ions can move through the lattice.
The layers of ions can slide over each other.
There is an electrostatic attraction between positive ions and delocalised electrons.
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1
1 mark
Metallic bonding contributes to which of the following properties of metals?
brittleness and low ductility
low electrical conductivity and low thermal conductivity
low melting point and boiling point
malleability and ductility
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2
1 mark
What explains the high thermal conductivity of metals?
mobile delocalised electrons
presence of ions
strong covalent bonds
weak metallic bonds
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3
1 mark
What happens to the metallic bonds when a metal is hammered into thin sheets?
they become stronger
they break and do not re-form
they break and re-form
they remain completely unchanged
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1
1 mark
Sodium and magnesium are both Period 3 elements.
Which row explains why the first ionisation energy of magnesium is higher than that of sodium?
Magnesium has a smaller atomic radius | Magnesium has a larger nuclear charge | Stronger nuclear attraction for outer electrons | |
|---|---|---|---|
A | ✓ | ✓ | ✓ |
B | ✓ | ⨯ | ⨯ |
C | ⨯ | ⨯ | ✓ |
D | ✓ | ✓ | ⨯ |
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2
1 mark
Which metal has the highest electrical conductivity?
Al
Li
Mg
Na
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3
1 mark
In which compound is the anion most polarised?
KF
KI
LiF
LiI
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