Khan Academy
Khan Academy: Half Life Plot
Definition of half-life and graphing the decay of phosphorus-32. Calculating how much phosphorus-32 remains after 57.2 days. [6:42]
Khan Academy
Khan Academy: More Exponential Decay Examples
Sal dives in even deeper with a few more examples of exponential decay. Practice calculating k from half-life, and calculating initial mass. [7:21]
Khan Academy
Khan Academy: Exponential Decay and Semi Log Plots
Practice using exponential decay equation to solve for relationship between k and half-life. Further learning by using semi-log plot to get graph of a straight line with slope of -k. [10:16]
Other
Radioactive Dating
Have you ever wondered how paleontologists and geologists determine the age of fossils or geologic events that occurred in the past? Explore the processes of radioactive decay and radioactive dating. The chemistry of half-lives of...
Bozeman Science
Bozeman Science: Half Life & Radioactive Decay
In the following video Paul Andersen explains how a radioactive nuclei can decay by releasing an alpha, beta, or gamma particle. The exact moment of decay for each nuclei can not be determined but probability is useful in predicting the...
Crash Course
Crash Course Chemistry #38: Nuclear Chemistry
In this episode, Hank welcomes you to the new age, where he talks about transmutation among elements, isotopes, calculating half-life, radioactive decay, and spontaneous fission. [9:58]
Khan Academy
Khan Academy: Science: Quantum Physics: Nuclei: Half Life Plot
Definition of half-life and graphing the decay of phosphorus-32. Calculating how much phosphorus-32 remains after 57.2 days. [6:46]