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5 Written questions

5 Matching questions

  1. Si (structure)
  2. Kr
  3. lattice
  4. Si (type)
  5. NH₃ (type)
  1. a a regular, repeating array of atoms or ions
  2. b
    tetrahedral network
  3. c molecular solid
  4. d group 18 solid (aka atomic solid)
  5. e Network solid (3-D)

5 Multiple choice questions

  1. Network Solid (3-D)

  2. tetrahedral network

  3. tetrahedral network

  4. Formed from α-quartz at 846K.
  5. different structural modifications of an element; bonding is different

5 True/False questions

  1. α-quartz
    The most common form of silica (SiO₂) in nature.

          

  2. Graphite (description of structure)layered, planar; can be described as a 2-dimensional lattice because covalent bonds occur only within sheets (planes) called graphenes; in each layer C atoms are arranged in a honeycomb-like lattice

          

  3. glass (type)amorphous solid

          

  4. Ag (type)metallic solid

          

  5. Silica (description of structure)layered, planar; can be described as a 2-dimensional lattice because covalent bonds occur only within sheets (planes) called graphenes; in each layer C atoms are arranged in a honeycomb-like lattice

          

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