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S8P1.a

TermDefinition
Atom the smallest unit of an element thgat maintains the properties of that element.
Element a substance that cannot be separated that can be broken down into simpler substances by chemical means
Nucleus in physical science, an atom 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 an atom
Neutron a subatomic particle that has no charge and that is found in the nucleus of an atom.
Electron a subatomic particle that has no 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 Symbol one or two letter code that represents an element.
Created by: phonrichh
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