This lesson will provide an understanding of the basic chemistry of molecules.

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Introduction to Psychology

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Atom: the most basic part of an element. All matter is made of atoms.

Molecules: 2 or more atoms bonded (held) together


Example: Water (H2O) is a molecule. It is composed of 2 hydrogen atoms and one oxygen atom. There are a total of 3 (2+1) atoms in one molecule of water.