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S8P1.a

TermDefinition
Atom The smallest unit of element that maintains properties of that element
Element A substance that cannot be separated or broken down in to simpler substances by chemical means
nucleus in physical science,an atoms central region,which is made up of protons and neutrons
proton a subatomic particle that has a positive charge and that is found in the nucleus of and atom
neutron a subatomic particle that has a negative charge
atomic mass a mass of an atom expressed in atomic mass iunits
chemical symbol a one- or two-letter code that represents an element
Created by: zoefar3
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