compounds are composed of elements
elements are composed of sub atomic particles such as electrons and proton
A compound is made of of 2 or more elements. Elements are made up of atoms. So compounds are also made up of atoms because they are made up of elements.
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Compounds are substances made up of two or more different elements that are chemically bonded together. The smallest unit of a compound is a molecule, consisting of atoms which are in turn made up of subatomic particles: protons, neutrons, and electrons. Chemical bonds link these particles, determining the structure and properties of the compound.
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