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- 1. Multiple ChoiceA mixture of two or more metals is called:mixturesolutioncompoundalloy
- 2. Multiple Choice
What is the basis of a metallic bond?
the attraction of neutral metal atoms.
the attraction between protons and neutrons.
the attraction between positive metal ions and localised electrons.
the attraction between positive metal ions and delocalised electrons.
- 3. Multiple Choice
Ability of a material to deform by stretching along its length to make wires is called.
conductivity
ductility
malleability
hardness
- 4. Multiple Choice
Why are metals malleable? The electrons are....
shiny
held loosely within the lattice structure making metals strong
delocalised and able to move between the layers of ions as they are moved
shared between two metal ions and this holds the atoms together
- 5. Multiple Choice
Which of the following is NOT a property of a typical metal?
poor conductor of electricity
high melting point
shiny
hard
- 6. Multiple Choice
Which of these metals does NOT have a high melting point?
magnesium
mercury
aluminium
iron
- 7. Multiple Choice
Which type of bond creates a "pool" or "sea" of electrons between ions?
ionic bonds
covalent bonds
metallic bonds
weak intermolecular bonds
- 8. Multiple Choice
The ability of metal to be hammered into thin sheets is called _________________.
ductility
malleablility
moving electrons
brittleness
- 9. Multiple ChoiceWhich term means "can be shaped?"malleableductilehardsoft
- 10. Multiple Choice
What is this animation showing?
delocalised electrons
electric current in a solid metal
electric current in a molten metal
the metallic bond
- 11. Multiple Choice
Electrons that are free to move in a metal are referred to as...
localised electrons
delocalised electrons
electrostatic attractions
a sea of ions
- 12. Multiple ChoiceAt room temperature, most metals areliquidsolidgasan alloy
- 13. Multiple Choice
Why do metallic compounds conduct electricity as solids?
_________ are mobile, allowing electricity to flow through the metal
core electrons
valence electrons
protons
the metal cations
- 14. Multiple Choice
How does a metallic lattice differ from an ionic crystal?
a metallic lattice is less flexible
a metallic lattice can change shape without breaking
a metallic lattice shatters when struck
a metallic lattice melts easier than an ionic lattice
- 15. Multiple Choice
Which statement best described the structure of a metal?
3D lattice of positive metal atoms surrounded by delocalised electrons.
3D lattice of positive metal ions surrounded by a sea of delocalised electrons.
2D lattice of metal atoms in neat rows.
3D lattice of metal ions of alternating charge
- 16. Multiple Choice
Why do metals have high boiling points?
molecular structure
strong electrostatic attractions
takes little energy to break the metallic bonds
many electrons
- 17. Multiple Choice
What is this animation showing?
brittle nature of the metallic bond
the strength of the metallic bond
that metals are malleable
that metals are ductile
- 18. Multiple Choice
What is a regular repeating 3D arrangement of particles called?
grid
network
lettuce
lattice
- 19. Multiple Choice
What electrons are NOT shown in this model of the bonding in metals?
first energy level only
all the inner energy levels
valence electrons
all electrons are shown
- 20. Multiple Choice
Which statement is correct?
Metals are good conductors AS delocalised electrons can move allowing electric current
Metals are poor conductors AS delocalised electrons can move allowing electric current
Metals are poor conductors AS delocalised electrons cannot move
Metals are good conductors AS delocalised electrons cannot move
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