This document provides an overview of naming compounds, cations, anions and polyatomic ions. It lists common elements and their symbols. It outlines four main rules for naming compounds based on whether they contain two identical elements, a halogen/oxygen/sulfur, hydrogen and oxygen, or oxygen. Examples are given to illustrate each rule. Finally, it distinguishes between ionic and covalent formulae for various compounds like NaCl, CaCl2, H2O and others.