Across
- 1. Who named the smallest piece of matter "atomos"?
- 2. Who performed the gold foil experiment?
- 3. Bohr theorized that electrons move in ___________ around the nucleus
- 4. Whose analogical model could be a billiard ball?
- 7. What Greek philosopher declared that all matter is made of only four elements: fire, air, water, and earth?
- 8. Dalton discovered what particle in the atom?
Down
- 1. Dalton theorized that all atoms of a given element are alike and atoms of different elements are ____________.
- 5. What did Rutherford discover in his experiment?
- 6. Whose model has a similar setup to the solar system?
- 9. Whose model was referred to as the "plum pudding" model?