Across
- 3. Same atom, different charge, change in electrons
- 4. Created nuclear model/ Gold foil experiment
- 6. Makes up all living matter
- 8. Negatively charged particle, 2-8-8 rule
- 9. Outer layer of atom, determines reactivity
Down
- 1. Used plum pudding model/ cookie model
- 2. Dense center of atom, positive charge
- 3. Same atom, different mass, change in neutrons
- 5. Has 5 postulates, discovered atoms
- 7. Discovered that electron orbits nucleus