Across
- 4. Atomic theory
- 7. Aristotle
- 8. Planetary model
- 9. Modern Cloud Theory
- 10. Law of definite compositions
- 11. Law of multiple proportions
- 13. Niels Bohr
Down
- 1. Plum pudding model
- 2. John Dalton
- 3. Orbital Model
- 4. Atomos theory
- 5. Ernest Rutherford
- 6. J.J. Thomson
- 7. Democritus
- 12. Four Elements theory