Atomic Theory Crossword

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Across
  1. 4. A column in the periodic table
  2. 9. Elements in column 17
  3. 10. Elements in the first column of the Periodic Table
  4. 12. Said that each element has a characteristic type of atom that differs in properties from atoms of all other elements
  5. 14. Elements in column 16
  6. 15. Uncharged particles in the nucleus of atoms
  7. 16. A row in the periodic table
  8. 17. Charged particles in the nucleus
Down
  1. 1. Elements in the second column of the Periodic Table
  2. 2. Discovered isotopes
  3. 3. Discovered neutrons
  4. 5. Elements in column 15
  5. 6. Discovered fundamental electric charge as the charge of an electron
  6. 7. Showed that atoms have a positively charged nucleus
  7. 8. Negatively charged particles that exist around the nucleus
  8. 11. Conducted the gold foil experiment
  9. 13. Elements in column 18