Diamond and graphite | Combined science | Quizalize & Oak National Academy

Starter quiz

The presence of which type of bond is a key feature in giant covalent structures?
- Ionic bonds
- Covalent bonds ✓
- Metallic bonds
Which property is typical of substances with giant covalent structures?
- high melting and boiling points ✓
- conductivity in their solid state
- low melting and boiling points
- soluble in water
What distinguishes a giant covalent structure from a simple molecular structure?
- the type of atoms involved
- the presence of ionic bonds
- the size and regularity of the structure ✓
- their electrical conductivity
- their solubility in water
Which diagram below shows a model of a giant covalent substance?
- sodium chloride (NaCl)
- silicon dioxide (SiO₂) ✓
- nitrogen (N₂)
- iron (Fe)
Which properties are typically found in simple molecular substances but not in giant ionic structures?
- high electrical conductivity
- inability to dissolve in water ✓
- low melting and boiling points ✓
- flexibility and malleability
In giant covalent structures, atoms are bonded covalently in a large 3D lattice resulting in high melting and boiling points. Match each part of this sentence to the correct term.
- bonding
  
  ⇔
  
  covalent ✓
- structure type
  
  ⇔
  
  giant covalent ✓
- property
  
  ⇔
  
  high melting and boiling points ✓
- structure description
  
  ⇔
  
  large 3D lattice ✓