
Elements
Elements are the basic building blocks of matter, defined by the number of protons in their atoms. Each element has unique properties and cannot be broken down into simpler substances. The periodic table organizes all known elements, such as hydrogen, oxygen, and gold, based on their atomic structure and characteristics. Elements combine in various ways to form compounds, contributing to everything around us, from the air we breathe to the materials we use. Understanding elements is fundamental to chemistry and helps explain the composition and behavior of the physical world.