CourseGCSE Combined Science
GCSE Combined ScienceAQAGCSE PhysicsSoonGCSE ChemistrySoonGCSE BiologySoon

Alpha, beta and gamma radiation

Video coming soon

The key ideas and the summary sheet for this lesson are ready now.

Key ideas

  1. Unstable nuclei decay at random, giving out radiation.

  2. Activity = decays per second, in becquerels (Bq).

  3. Alpha: strongly ionising, short range. Beta: in between. Gamma: very penetrating.

  4. Pick the type that suits the job.