Elements are pure substances made of only one type of atom. Each element has its own name and symbol, such as hydrogen (H) or gold (Au). Elements are found naturally on Earth and in space. They are part of all materials and substances.

Examples of elements include oxygen in the air and iron in rocks and tools. Each element has unique properties that make it different from others. Elements are used in science, industry, and everyday life.

Elements cannot be broken down into simpler substances. They are listed and organized in a chart called the periodic table. Elements are the basic types of matter.