Chemistry unit study guide

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Across
  1. 3. positive charge
  2. 7. chemical element in common with typical metals
  3. 9. number of protons
  4. 11. a substance on the periodic table
  5. 12. elements that lacks metallic properties
  6. 14. negative charge
  7. 16. any element in the group O(helium)
  8. 17. column of elements
Down
  1. 1. element symbol
  2. 2. row of elements
  3. 4. middle part of atom
  4. 5. Russian, creator of periodic table
  5. 6. smallest part of molecule
  6. 8. conductors of electricity, chemical reactivity
  7. 9. mass of atomic particle
  8. 10. patterns of electron density
  9. 13. electron electron on edge of atom
  10. 15. nuetral charge