• Atoms and Molecules 7th grade
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  • Define: 1) Atom 2) Molecule
    Atom is the basic unit of matter. smallest part of element made up of P, N,E Atoms combine to make molecules. Molecule smallest part of suubstance.
  • State the charge and mass of protons, electrons and neutrons
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  • In which part of atom are the 3 subatomic particles found?
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