Untitled Figures and Drawings from Chem 103A Lecture Figures Dealing with Atoms and Molecules. Metric Prefixes . A table of the prefixes used in the metric system of units.
All matter is made of atoms .
Atoms of different elements have different weights and different properties. The concept of a molecule . A cluster of two or more atoms bound together is called a molecule . The properties of a molecule are different from those of the atoms comprising it. Molecules have definite, predictable shapes and structures .