CChieh@UWaterloo.ca

Experiment: Sphere packing

Models for Crystal Structures

  1. Sphere packing as models of crystal structures

    Use spheres to build models for the simple cubic (sc), body centred cubic (bcc), face centred cubic (fcc) and hexagonal closed packed (hcp) lattices. These are basic structure types of metals. The spheres are also used to model the structure of salts. Since sodium chloride is one of the common and important salt, you construct this structure to get a 3-dimensional feeling of this structure.

    The use of spheres as models for these structures is a brilliant scientific method. Using these spheres you can do the following:

    These are also goals of the lectures on the following topics: Intermolecular forces
    Face centered
    Simple cubic
    Tetrahedral sites
    Body centered

    cchieh@uwaterloo.ca