Chapter 9 Crossword

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Across
  1. 1. Early models of the atom
  2. 4. An electron in the outermost energy level of an atom
  3. 6. First name of the designer of the periodic table
  4. 7. Any of the possible energies an electron may have in an atom
  5. 9. The side tht the metals are found
  6. 11. Have a neutral charge
Down
  1. 2. The side that the non-metals are found
  2. 3. Last name of the designer of the periodic table of elements
  3. 5. Number of protons
  4. 8. Have a negative charge
  5. 10. Have a positive charge