chemistry scientists

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Across
  1. 3. cathode rays negatively charged
  2. 4. theory of covalent bonding
  3. 7. oil drop experiment
  4. 11. cancer treatment and radium
  5. 13. arranged elements by relative atomic mass
  6. 15. wave length and atomic number
  7. 17. discovered the electron
  8. 18. elements were budling blocks of substances
  9. 19. no 2 electronbs have same atomic numbers
Down
  1. 1. the Schrödinger equation
  2. 2. theory of relativity E=MC^2
  3. 5. known for the modern periodic table
  4. 6. bohr model of a atom
  5. 8. gasses at same temp & press = molecules
  6. 9. proposed the nuclear structure of atomns
  7. 10. introduced the atomic theory into chemistry
  8. 12. quantum theory
  9. 14. founder of modern chemistry
  10. 16. proved neutrons existed