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- 1. Multiple Choice
Metals have positive ions in a ‘sea of electrons’. Which metal atom provides the most electrons for the sea?
Aluminium
Sodium
Calcium
Magnesium
- 2. Multiple Choice
Which statement describes the structure of copper?
It has a lattice of negative ions in a ‘sea of electrons’.
It has a lattice of negative ions in a ‘sea of protons’.
It has a lattice of positive ions in a ‘sea of electrons’.
It has a lattice of positive ions in a ‘sea of protons’
- 3. Multiple Choice
The structure of copper is described as a lattice of positive ions in a ‘sea of electrons’.
Which statements are correct?
Copper has a high melting point because of the strong electrostatic attraction between the positive ions and the ‘sea of electrons’.
Copper is malleable because the layers of atoms in the lattice can slide over each other.
Copper atoms can be oxidised to form copper ions by losing electrons.
- 4. Multiple Choice
Copper is a metallic element.
Which statements about copper are correct?
Copper is malleable because layers of ions are in fixed positions and cannot move.
The structure of copper consists of negative ions in a lattice.
Copper conducts electricity because electrons can move through the metal.
Electrons hold copper ions together in a lattice by electrostatic attraction.
- 5. Multiple Choice
Which statement describes the lattice structure of a metal?
The lattice consists of alternating positive ions and negative ions.
The lattice consists of neutral atoms arranged in layers.
The lattice consists of positive ions in a ‘sea of electrons’.
The lattice consists of neutral atoms in a ‘sea of electrons’.
- 6. Multiple Choice
Which statement about metals is correct?
Layers of positive ions can slide over each other making metals malleable.
Metallic bonding consists of a lattice of negative ions in a sea of delocalised electrons.
Metallic bonding consists of a lattice of positive ions in a sea of delocalised negative ions.
Metals conduct electricity because positive ions are free to move.
- 7. Multiple Choice
Which statement describes metallic bonding?
The attraction between a lattice of negative ions and delocalised protons.
The attraction between a lattice of positive ions and delocalised electrons.
The attraction between delocalised protons and electrons.
The attraction between oppositely charged ions.
- 8. Multiple Choice
Which statement about metals is not correct?
Metals are malleable because the metal ions can slide over one another.
Metals conduct electricity because electrons can move through the lattice.
Metals consist of a giant lattice of metal ions in a ‘sea of electrons’.
Metals have high melting points because of the strong attraction between the metal ions.
- 9. Multiple Choice
The diagram shows metallic bonding.
Which labels are correct?
X: atomic nucleus
Y: outer electron
X: metal atom
Y: mobile electron
X: metal cation
Y: mobile electron
X: positive ion
Y: negative ion
- 10. Multiple Choice
The diagram represents the general structure of a solid Z.
What is Z?
aluminium
iodine
silicon dioxide
sulfur
- 11. Multiple Choice
Metals consist of a lattice of positive ions in a ‘sea of electrons’. Why is aluminium malleable?
Its ions repel each other.
Its ions are attracted to the ‘sea of electrons’
Its ions are tightly packed together.
Its layers of ions can slide over each other.
- 12. Multiple Choice
Which substance exists as a lattice of positive ions in a ‘sea of electrons’?
liquid potassium chloride
solid graphite
solid magnesium
solid silicon(IV) oxide
- 13. Multiple Choice
X is a solid at room temperature.
X has a high melting point.
Solid X conducts electricity.
Which diagram shows how the particles are arranged in solid X?
- 14. Multiple Choice
Iron is a metal.
Its structure consists of a giant lattice of positive ions in a ‘sea of electrons’.
Which statements about solid iron are correct?
Iron conducts electricity because the electrons are free to move
Iron conducts heat because the positive ions are free to move.
Iron has a high melting point due to the strong covalent bonds.
Iron is malleable because the layers of ions can slide over one another.
- 15. Multiple Choice
Metals are malleable. Which statement explains why metals are malleable?
Metallic bonding is very strong.
Metals are good conductors of electricity.
Positive metal ions are arranged in a regular lattice structure
The layers of positive metal ions can slide over each other.
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