Atomic Theory

2. Subatomic particle with a positive charge
4. The center of the atom where the protons and neutrons are located
5. What Rutherford proposed the atom was mostly made of (Neyland Stadium example)
6. Transformed Democritus's ideas on atoms into a scientific theory
7. Subatomic particle with no charge
9. Used the cathode ray tube experiment to discover the electron
10. Use the gold foil experiment and suggested that the atom was mostly empty space
11. the smallest particle of an element that retains its identity in a chemical reaction

1. Dalton's theory that atoms and matter are transformed during a reaction rather than destroyed or created
2. Thomson's idea that protons and electrons were spread throughout the atom
3. The first to think that atoms existed
8. Subatomic particle with a negative charge