| __ | 11. | Brownian Motion | | A. | N can't be too sure where an electron is |
| __ | 12. | Curie N | | B. | gold foil, ricochet like cannon and tissue |
| __ | 13. | Dalton | | C. | he saw Brownian Motion as evidence of particles |
| __ | 14. | Democritus | | D. | N the lady who discovered radiation |
| __ | 15. | Einstein | | E. | pollen looks "alive" because of this |
| __ | 16. | Geiger N | | F. | Atoms are similar but different for each element |
| __ | 17. | Heisenburg N | | G. | atoms are as small as you can get for an element |
| __ | 18. | Lavoisier N | | H. | N Rutherford was counting on him before radiation did |
| __ | 19. | Pascal N | | I. | N balloon and pressure |
| __ | 20. | Rutherford | | J. | N "discovered" Oxygen |