proton - positive charge/found in nucleus, neutron - neutral charge/found in nucleus, electron - negative charge/found in cloud, nucleus - center of atom, atomic number - number of protons in an atom, element - pure substance made of only one type of atom, atomic mass - number of protons plus neutrons, chemical symbol - one to two letter abbreviation of the element, Periodic Table - Lists all 118 of the elements in order of atomic number, protons and electrons - opposite charges attract,

Atoms and Elements

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