Chemistry Key Words 0.0 / 5 ? ChemistryThe Periodic TableGCSEAQA Created by: BeaSted2005Created on: 21-11-18 06:35 Proton A particle within the nucleus of an atom which holds a positive charge 1 of 7 Neutron A particle in the nucleus of an atom that has no electric charge. 2 of 7 Electron A particle of an atom that orbits the atom's nucleus and carries a negative charge 3 of 7 Atom The atom is a basic unit of matter and the smallest unit of an element. It consists of a nucleus which is surrounded by a cloud of electrons 4 of 7 Mixture A mixture contains two or more substances that are not chemically combined 5 of 7 Element An element is a substance made from only one type of atom 6 of 7 Compound A compound is a substance made from two or more elements 7 of 7
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