This video lesson explores the meaning of the term half-life, which is the time it takes for one half of a radioactive sample to decay. Duration: 5:54.
Kai and Maile explore the hands-on chemistry activity from the textbook: "Radioactive Paperclips." Keep in mind that legonium and headonium are make-believe elements represented by the paperclips. Duration: 2:39.
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Watch these additional videos to complete this tutorial.