#109
4.4.3.2 Different half-lives of radioactive isotopes
Paper 1 · Triple only
Spec reference: 4.4.3.2 (physics only).
Triple-only content in this dot
- Half-life varies widely; hazard depends on half-life and radiation type.
- Compare risks for short/long half-life sources.
Exam quick-check
- Can I identify this as a triple-only point from wording in the question?
- Can I apply the correct equation/idea with units and a clear conclusion?