Half-life
What half-life means, how to read it off a decay graph, and how to work out what is left after a number of half-lives, correcting for background.
You will be able to
- Read a half-life from a decay graph
- Work out the activity, count rate or mass left after a whole number of half-lives
- Find a half-life or a time from two readings
- Express the net decline as a ratio (Higher)
25 minutes, 10 exam-style questions, with the Radioactive decay simulation and the Half-Life Calculator.