The unstable nucleus and its radiations

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• 14 sections of explanation, worked examples and diagrams
• 2 practice tasks with hints and worked answers
• A quiz that marks itself as you go
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Other lessons in this sub-strand

1. The unstable nucleus and its radiations
2. Nuclear equations and half-life
3. Fission, fusion, applications and safety
4. The nucleus and its nucleons
5. Isotopes of the same element
6. The neutron-to-proton ratio
7. The strong force and why large nuclei fail
8. Alpha radiation close up
9. Beta particles from the nucleus
10. Gamma rays: energy only
11. Ionisation against penetration
12. Alpha, beta and gamma in fields
13. The Geiger–Müller tube
14. Film, cloud chamber and electroscope
15. Background radiation in Kenya
16. Writing nuclear equations
17. Decay series until stability
18. Half-life is a constant
19. Half-life calculations
20. Decay curves and background
21. Modelling half-life with dice and a burette
22. Carbon-14 dating of wood and bone
23. Fission, fusion and control
24. Hospitals, mines and safety in Kenya