LargeUp « LargeUp.com | LargeUp Geology Cafe.com Essential concepts of chemistry related to earth materials Basic concepts of chemistry are essential to understanding the physical and chemical properties of earth materials (minerals, rocks, organic matter, etc.). The chemical characteristics of earth materials are reflect the environments how and where they are formed, they also determine their potential fate when exposed to chemical changes. All matter is made up of atoms, and atoms are made up of atomic particles (electrons, protons, and neutrons - see Figure 2-5). Many elements have one or more isotopes. In "nature,"here are at least 254 stable isotopes that have never been observed to decay. A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction chemical compound—a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions.
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