Half Life Simulation

Clicking on the title bar above will take you to a Java Applet which simulates radioactive decay. The simulation gives a good idea of what is happening.

1. What is meant by the term 'half life'?
2. Choose any 5 of the examples and watch the applet and state the their half life.
3. Can the number of radioactive atoms ever reach zero?
4. What do think the term 'daughter nuclide' means?
5. What happens to the total number of atoms in the sample?