GROUP 1 (Becquerel & Curie, discovery of radioactivity)
Watch video at these times: 8:15 - 9:30
Discovery of Radioactivity
& beginning - 0:42
Discovery of Radioactivity

GROUP 2 (Marie Curie, Radium, "inexhaustible energy")
Watch video at these times: 3:25 - 5:30
Inexhaustible Energy

GROUP 3 (Rutherford, radioactive decay, atoms can turn into other atoms when # of protons changes)
Watch video at these times: 1:46 - 3:55
Rutherford & Radioactive Decay

GROUP 4 (Rutherford cont., radioactive decay cont., N to O)
Watch video at these times: 3:23 - 6:06
Rutherford & Radioactive Decay

GROUP 5 (Strong Nuclear Force)
Watch video at these times: 9:30 ? end
Strong Nuclear Force
& beginning - 0:27
Strong Nuclear Force

GROUP 6 (Atomic stability, nuclei wanting to become more "iron-like")
Watch video at these times: 0:34 - 3:03
Atomic Stability