Key Words: 1.5 & 1.6 0.0 / 5 ? ChemistryAtoms and compoundsIGCSEEdexcel Created by: cninamatosCreated on: 20-05-16 07:54 Compound A substance composed of two or more elements chemically bonded 1 of 5 Mixture A substance composed of two or more molecules (or elements) not chemically bonded 2 of 5 Element A substance that cannot be broken down into a simpler form; the primary constituents of matter 3 of 5 Atom The basic unit of a chemical element 4 of 5 Molecule A group of atoms bonded together 5 of 5
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