chemical history

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