1. Crystalline Solids

4. p. 459

5. Macroscopic structure depends upon microscopic structure.

6. Fluorite (CaF 2 )Amethyst (SiO 2 ) – quartz + Fe & Mn Pyrite (FeS 2, fool’s gold)

7. Crystal terms Crystal – Lattice – Unit cell – Edge length (d o ) – corner edge face

10. Atoms and ions are represented by spheres. The spheres stack in different patterns three- dimensionally. The close packing of spheres maximizes intermolecular force. The patterns of stacking result in different types of unit cells and lattices. Packing in Crystals

11. Lattice – unit cell relationship

18. Close packing

19. Close packing unit cell types

20. Intermetallic Compounds Alloys

25. What about the lattice space left over?

28. NaCl