Across
- 6. discovered the neutron
- 7. coined the term atom for indivisible matter
- 9. made a bad model and a good theory
- 11. father of the periodic table
- 12. revived the atomic theory
- 13. proved atoms could be broken apart
- 15. discovered that oxygen was its own element
- 16. found the charge of an electron
Down
- 1. discovered electrons, and then protons
- 2. found radioactive energy
- 3. found that most of an atom is empty space
- 4. disproved phlogiston
- 5. made a law that ratios of atoms matter
- 8. found how to count protons in an atom
- 10. made many heavy elements
- 14. proved light was a particle and that atoms existed