Across
- 3. attractive force between positive-negative
- 7. Atomos
- 8. atomic number
- 9. Wave-Particle Duality of Nature
- 11. Atomic Theory
- 14. cloud model of the atom
- 16. Discovered the Electron
- 17. Radioactivity
- 18. periodic table
- 19. charge of an electron
Down
- 1. Law of Definite Proportions
- 2. Nuclear Atom
- 4. Planetary Model of the Atom
- 5. photoelectric effect
- 6. cathode ray tube
- 10. X-rays
- 12. Law of conservation of Mass
- 13. The Skeptical Chymist
- 15. Canal Rays
- 17. Discovered the Neutron