History of the Atomic Theory

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Across
  1. 2. Proposed that electrons orbit the nucleus
  2. 6. Neutral charged particle in nucleus
  3. 7. First said matter is made of tiny invisible atoms
  4. 8. Building block of matter
  5. 10. Negatively charged particle
Down
  1. 1. Center of atom
  2. 3. Discovered the nucleus
  3. 4. Positively charged particle
  4. 5. Discovered the electron
  5. 9. Created the first modern atomic theory