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S8P1.A

Distinguish between atoms and Molecules

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