Sir Jospeh John Thompson

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Across
  1. 2. Sir Joseph ____ Thompson
  2. 3. ____ bomb
  3. 4. The university Thompson taught at
  4. 7. Periodic table, chemist, chemistry
  5. 8. ___ Joseph John Thompson
  6. 10. A Hydrogen Ion
Down
  1. 1. Sir Joseph John ________
  2. 5. An atomic demonstration
  3. 6. What is a part of everything?
  4. 9. Sir ______ John Thompson