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s8p1.a

distinguish between atoms and molecules

TermDefinition
atom the smallest unit of element that maintains the properties of that element atom
element substance that cannot be separated or broken down into simpler substances by chemical means element
nucleus in physical science, an atom's central region, which is made up of protons and neutrons nucleuos
electron a subatomic particle that has a negative charge electon
atomic number he 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 neutral
atomic mass the mass of an atom expressed in atomic mass units
chemical symbol a one- or two-letter code that represents an element chemicial symbol
proton a subatomic particle that has a positive charge and that is found in the nucleus of an atom proton
neutron a subatomic particle that has no charge and that is found in the nucleus of an atom neutron
Created by: 1king_5
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