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8th- Classifying Mat

element a pure substance made of only one kind of atom
pure substance a substance that is made of only one kind of atom, compound, or molecule
atom the smallest unit of an element
compound two or more elements chemically combined; a pure substance when atoms bond in a fixed ratio
molecule the smallest unit of a compound; contains multiple elements bonded together
diatomic molecule a molecule formed from two identical atoms
mixture different types and amounts of matter physical combined
Created by: holtzmanscience