Will Johnson Unit 2

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Across
  1. 1. an atom that carries an electrical charge
  2. 3. Model that is most accurate and understandable
  3. 5. number of protons equals the ______
  4. 7. made up of protons, nuetrons, and electrons
  5. 8. an electron in the outermost energy level of an atom
  6. 9. larger than electrons with no electrical charge
Down
  1. 1. two atoms with a different number of nuetrons
  2. 2. Tiny, very light particles found on the orbitals of an atom
  3. 4. much heavier than electrons and have a positive charge
  4. 6. Used for things that are two big or to small to see