👉 Inorganic refers to substances that are naturally occurring and not chemically synthesized. They do not contain any metal or chemical elements, but instead consist of atoms or molecules without their own nucleus. Inorganic materials can be found in various forms such as minerals, metals, salts, and organic compounds. These materials are typically composed of elemental units like carbon, hydrogen, oxygen, nitrogen, sulfur, etc., and they do not react with other substances.