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1. State the geometry, chemical formula and packing of rutile.

  • TiO, Oct + CCP
  • TiO2, 1/2 Tet + CCP
  • TiO2, 1/2 Oct ord.fram. + HCP
  • TiO2, 1/2 Oct ord.fram. + CCP
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2. Name 3 ionic compounds that form CCP with tetrahedral holes.

  • CaF2, TiO2, Na2O
  • MgF2, FeS, MgO
  • CaF2, UO2, Na2O
  • NaO, CaF2, SnO2

3. State the geometry and packing of NaCl.

  • Oct + CCP
  • Tet + CCP
  • Oct + HCP
  • Tet + HCP

4. Name the radius ratio, structure type and cation hole that corresponds to a CN of 8.

  • 0.732-1.000, CsCl, Fluorite, Cubic
  • 0.732-1.000, NaCl, Fluorite, Cubic
  • 0.225-0.414, NaCl, Rutile, Octahedral
  • 0.414-0.732, NaCl, Rutile, Tetrahedral

5. State the geometry, chemical formula and packing of cadmium chloride.

  • CdCl2, 1/2 Oct ord. fram. + CCP
  • CdCl, 1/2 Oct alt + CCP
  • CdCl2, 1/2 Oct alt + CCP
  • CdCl2, 1/2 Oct alt + HCP

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