Across
- 3. Radioactive decay is a ... process
- 6. The most ionising radiation
- 7. This wave of energy is electromagnetic radiation
- 9. The activity of a sample ... over time
- 12. Beta particles are used to control the thickness of aluminium ...
- 14. This radiation is all around us, all of the time
- 15. The time for the activity to halve
- 16. Gamma rays are stopped by thick...
- 17. Found in the nucleus of the cell and is damaged by radiation
- 19. The part of an atom where radiation is emitted from
Down
- 1. The least ionising radiation
- 2. the dangerous ability to remove electrons
- 4. Beta particles are this charge
- 5. Alpha particles are used in a ... detector
- 8. Alpha particles are stopped by this
- 10. Radiotheraphy is used to treat
- 11. Made of 2 protons and 2 neutrons
- 13. A radioactive nucleus is
- 14. This particle is also a fast electron
- 18. This machine detects radiation