What shape are carbon nanotubes?

• Pyramidal

• Cubic

• Cylindrical

• Spherical

What is a limitation of the particle model?

• The particle model assumes that particles have no forces between them

• The particle model assumes that particles should be square

• The particle model assumes that there are more particles than in real life

• The particle model assumes that there are fewer particles than in real life

In graphite, how many covalent bonds does each carbon atom form?

• 1

• 2

• 3

• 4

Which one of these is NOT a property of a fullerene?

• A hollow shape

• Hexagonal carbon rings

• A molecule of carbon atoms

• Short length and large diameter

Metals consist of giant structures of           arranged in a regular pattern.

• atoms

• neutrons

• molecules

• protons

Non-metal atoms become negatively charged ions by…

• gaining electrons

• sharing electrons

• losing electrons

• gaining protons

Which of these is NOT an example of a giant covalent substance?

• Graphite

• Sodium chloride

• Diamond

• Silicon dioxide

Ionic bonding is the bonding between…

• metals and non-metals

• metals and metals

• non-metals and non-metals

• gold and silver

Which of these statements is NOT true?

Ionic compounds can conduct electricity when…

• they are melted

• they are dissolved in water

• electrons are free to move

• ions are free to move

In metallic bonding, the electrons are…

• stationary

• delocalised

• donated

• gained