Across
- 2. Called this because of the belief that electron do not move in random motion but instead move around the nucleus like planets around the sun
- 6. All matter consisted of 4 elements ie, (Earth,water,Fire, and Wind)
- 10. Matter is made of tiny particles and there are negatively charged particles that are called electrons with positively charged particles that surround them
- 11. Suggested that instead of electrons moving in random motion that they actually followed a path around the nucleus
- 14. As the theory of Quantum Mechanics has developed, it is now believed that electrons exist in an "AREA" not specific "path" like the atmosphere rather than the planetary orbits around the sun
- 15. "not to be cut" and all matter was divisible to a point
Down
- 1. developed the "atomos" theory
- 3. When elements combine, they do so in the ration of small while numbers
- 4. Matter is made of tiny particles called atoms that can't be subdivided and believed atoms would combine in specific proportions when making compounds and only multiples of those proportions could be produced
- 5. More well known than Democritus and believed that all matter consisted of 4 elements
- 7. A compound, no matter what its source, always contains definite, or constant, proportions of its elements by mass
- 8. Was the first to start investigating the structure of the atom
- 9. Created the gold foil experiment and futher experimented with Thomson's model
- 12. called this as it is the electron paths is based on the amount of energy they possessed
- 13. Created the Atomic Theory and was an English school teacher