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Radioactive decay #2

 
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The half-life of  a given isotope is the amount of time it takes for half of the atoms in a sample to decay. This animation  allows you to address, using three different isotopes,  notions like radioactive decay, carbon dating, half life constant…

Click on one of the three isotopes to select a half-life constant.
Click on [Play] to start the decay.

  • To illustrate how the decay of an unstable nucleus is a random process. 
  • To define the half-life constant for three representative radioactive nucleus.
  • To relate the Becquerel to the process of radioactive decay.
  • To visualize the exponential decay law.