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S8p1.a

distinguish between molecules and atoms

TermDefinition
atom the smallest unit of an element that maintains the properties of that element
element a substance that cannot be separated or broken down into simpler substance by chemical means
nucleus in physical science, an atom's central region, which is made up of protons and neutrons
proton a subatomic particle tat has a positive charge and that is found in the nucleus of an atom
neutron a subatomic particle that has a no charge and that is found in the nucleus of an atom
electron a subatomic particles that has a negative charge
atomic number the number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element
neutral having no overall charge
atomic mass the mass of an atom expressed in atomic mass units
chemical symbols a one- or two- letter code that represents an element
Created by: too awesome
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