CHEM103 Chapter Notes - Chapter 12: Metallic Bonding, Fused Quartz, Sube Card

• School: University of Alberta
• Department: Chemistry
• Course: CHEM103
• Professor: John Veinot

Document Summary

Chapter 12 intermolecular forces: liquids, solids, and phase changes. 12. 6 the solid state: structure, properties, and bonding. We can divide solids into two broad categories: Crystalline solids: have well defined shapes b/c their particles atoms, molecules, or ions occur in an orderly arrangement. Amorphous solids: have poorly defined shapes b/c their particles lack an orderly arrangement throughout the sample. The particles in a crystal are packed tightly in an orderly 3-d array. Consider the particles as identical spherical atoms, and imagine a point at the center of each. The collection of points forms a regular pattern called the crystal lattice. The lattice consists of all points with identical surroundings there is no way to tell if you moved from one lattice point to another. Unit cell: the smallest portion that gives the crystal if it is repeated in all directions. A key parameter of any lattice is the coordination number, the number of nearest neighbors of a particle.