There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as each ...

Elements and Compounds Examples: This article explains the definition of elements and compounds, their characteristics, differences, and examples. Read this to understand these terms better.

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue investigates chemical reactions involving sodium. Find out how the electron configuration of ...

Discover the fascinating chemistry that makes our world and everything in it—including us. Just about every solid, liquid, or gas in the world as we know it begins with reactions between individual ...