Across
- 3. - Ancient precursor to modern chemistry.
- 4. - Proposed the law of mass action.
- 6. - Discredited substance believed to be released during combustion.
- 9. - Co-invented the Geiger-Marsden experiment, revealing the atomic nucleus.
- 11. - Developed the concept of ions in solution and the Arrhenius equation.
- 12. - Formulated Boyle's law relating gas pressure and volume.
- 13. - Pioneered the study of bioelectricity.
- 16. - Discovered noble gases, including helium, neon, and argon.
- 20. - Considered the "father of chemistry" in the Islamic Golden Age.
- 23. - Invented the first chemical battery.
- 24. - Pioneer in electromagnetism and electrochemistry.
- 27. - Discovered oxygen and contributed to the study of gases.
- 28. - Discovered polonium and radium, known for radioactivity research.
- 29. - Discovered the atomic nucleus.
- 30. - Discovered X-rays.
Down
- 1. - Discovered radioactivity in uranium.
- 2. - Proposed the atomic theory.
- 5. - Created the periodic table.
- 7. - Process for synthesizing ammonia from nitrogen and hydrogen.
- 8. - Pioneered the development of the mole concept.
- 10. - The "Father of Modern Chemistry."
- 14. - Introduced Avogadro's law and the concept of the mole.
- 15. - Investigated gas behavior and relationship to temperature and pressure.
- 17. - Discovered several chemical elements, including oxygen.
- 18. - Measured the composition of water and discovered hydrogen.
- 19. - Developed the principle of chemical equilibrium.
- 21. - Described the concept of latent heat.
- 22. - Developed the Haber process for ammonia synthesis.
- 25. - Invented the Crookes radiometer and studied cathode rays.
- 26. - Formulated the law of definite proportions.