Back to quiz

6. Name the structure that is likely to have a radius ratio of about 0.999.

  • Wurtzite or Zinc Blende
  • NaCl or Zinc Blende
  • CsCl or Fluorite
  • NaCl or Rutile

7. State the geometry, chemical formula and packing of anatase.

  • TiO2, 1/2 Oct ord.fram. + CCP
  • TiO2, 1/2 Oct alt + CCP
  • TiO, Oct + HCP
  • TiO, 1/2 Oct ord. fram. + CCP

8. Name 3 ionic compounds that form HCP with 1/2 octahedral holes (alt).

  • ZnS, AlN, NH4F
  • CdI2, TiS2, Mg(OH)2
  • Mg(OH2), TiS2, NH4F
  • CdI2, AlN, NH4F

9. Name 3 ionic compounds that form HCP with 1/2 octahedral holes (ord. fram.).

  • TiO2, SnO2, MgF2
  • ZnS, NiAs, MgF2
  • Mg(OH2), TiS2, NH4F
  • TiO2, NiS, FeS

10. Name the structure that is likely to have a radius ratio of about 0.574.

  • CsCl or Fluorite
  • NaCl or Rutile
  • Fluorite or CsCl
  • Rutile or Zinc Blende

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

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

12. Name 3 ionic compounds that form CCP with octahedral holes.

  • TiO2, KBr, MgO
  • NaCl, ZnS, MgO
  • NaCl, KBr, MgO
  • NaCl, CdS, TiS2

13. State the geometry, chemical formula and packing of wurtzite.

  • ZnS, Tet + HCP
  • ZnS, 1/2 Tet + HCP
  • ZnS2, 1/2 Oct alt + HCP
  • ZnS, 1/2 Tet + CCP

14. State the geometry and packing of NaCl.

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

15. Name 3 ionic compounds that form CCP with 1/2 octahedral holes (alt).

  • CdCl2, Mg(OH)2, NiBr2
  • CdI2, MgCl2, NiBr2
  • CdCl2, MgCl2, NiBr2
  • CdCl2, TiS2, Mg(OH)2

16. Name 3 ionic compounds that form HCP with 1/2 tetrahedral holes.

  • TiS2, AlN, NH4F
  • ZnS, AlN, NH4F
  • ZnS, TiO2, NH4F
  • ZnS, NiAs, MgF2

17. State the geometry, chemical formula and packing of fluorite.

  • CaF, Oct + HCP
  • CaF2, Tet + CCP
  • CaF2, Oct + HCP
  • CaF, Tet + CCP

18. Name an ionic compound that forms HCP with tetrahedral holes.

  • Not known
  • TiO2
  • ZnS
  • NiAs

19. Name 3 ionic compounds that form CCP with 1/2 tetrahedral holes.

  • ZnS, CdS, SiC
  • ZnS, AlN, SiC
  • MgO, SnO2, MgF2
  • FeS, CdS, SiC

20. Name 3 ionic compounds that form HCP with octahedral holes.

  • TiO2, NiS, FeS
  • NiAs, NiS, FeS
  • NiAs, NiS, ZnS
  • NiAs, KBr, TiS2