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Introduction to Atoms

K. Vaughn

introduce vocabulary of atoms

atom particle that has no charge (neutral)
proton place in an electron cloud when an electron is most likely found
neutron Total # of protons & neutrons in an atom
electron center of an atom
nucleus smallest part of an element
energy level anything that has mass and takes up space
matter # of protons in the nucleus of an atom
atomic mass Capital letter(s) that represent substances on periodic table
atomic number atomic particle with a positive charge
element symbol atomic particle with a negative charge

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