Why are there only 118 elements, even though there are more than 118 different materials?

Why are there only 118 elements, yet so many different materials in the world? This simple chemistry e-book explains how atoms, elements, and molecules work together to make many things around you. Readers will learn why elements are different, how atoms combine, and how chemical reactions create new substances. With clear explanations and helpful diagrams, this 62-page PDF book includes 52 diagrams to support learning and make chemistry easier to understand. A clear and easy introduction to chemistry for curious learners.