project

1. Neils Bohr name for the path he learned electrons fallowed
4. English schoolteacher that developed a theory involving the relationship between matter and the atom
5. J.J. Thomas's theory
8. suggested that instead of electrons moving in random motion that they actually fallowed a path around the nucleus
11. a compound, no matter what its source, always contains definite, or constant, proportions of its elements by mass
12. developed the "Atomos Theory"
14. the most modern theory
15. believed all matter consisted of 4 elements: Earth, fire, wind, and water

2. mater is made of tiny particles called atoms that can't be subdivided
3. states that when elements combine, they do so in the ratio of small whole numbers
6. more established than Democritus
7. Theory earth, fire, wind, water
9. first began investigation of the atom
10. Neils Bohr's model
13. further investigated Thomason's model