CHEM 001 Class 1 Class Notes January 14, 2008 C. Cecil Cuppett, Ph.D. Chapter 1: 1. Matter is anything that has mass or weight. (Weight depends on having a force of gravity.) 2. All matter we observe is made from electrons, protons, and neutrons. The elements are made from these particles. The terms atom and element can be used interchangeably in most cases. 3. Every element that is known is shown on the “periodic chart”. 4. Many of the pure (only one kind of element) substances that we see are metals : silver, gold, iron, aluminum, copper, and lead. Elements that are not metals are called nonmetals: oxygen, carbon, nitrogen, phosphorus, and chlorine. 5. Most of the substances we see are combinations of elements. The elements in these materials are bound together by the electrons on the surface of the elements. When a substance is composed of two or more elements bound together, the substance is a called a compound . 6.
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