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5 Written questions

5 Matching questions

  1. Diamond (structure)
  2. 2 allotropes of carbon
  3. β-quartz
  4. Diamond (type)
  5. NH₃ (type)
  1. a
    tetrahedral network
  2. b molecular solid
  3. c Network solid (3-D)
  4. d graphite; diamond
  5. e
    Formed from α-quartz at 846K.

5 Multiple choice questions

  1. a regular, repeating array of atoms or ions
  2. different structural modifications of an element; bonding is different
  3. amorphous solid
  4. metallic solid

5 True/False questions

  1. Silica (description of structure)has more polymorphs than almost any other structure


  2. Graphite (unit cell)


  3. CO₂molecular solid


  4. polymorphsdifferent forms of crystal structure for the same solid material


  5. Si (unit cell)The smallest building block of a crystal, consisting of atoms, ions, or molecules, whose geometric arrangement defines a crystal's characteristic symmetry and whose repetition in space produces a crystal lattice.


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