Familiarize yourself with the periodic table. The table is divided into rows called periods and columns called groups. Understanding the layout and organization of the elements is essential to finding ...

The first step in finding electrons is to understand the basic structure of an atom. Atoms are made up of protons, neutrons, and electrons. Protons carry a positive charge and are located in the ...

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue examines how atomic structure determines reactivity. Meet Theo Gray, chemist and author, who ...