Across
- 2. these can be damaged or killed by radiation
- 4. reaction needed in a nuclear fission reaction
- 5. radiation absorbed by aluminium
- 7. when an atom loses or gains electrons
- 8. the unit of equivalent dose
- 9. the unit of absorbed dose
- 12. this type of radiation comes from food etc
Down
- 1. unit of Activity
- 3. when a heavy nucleus splits into two smaller ones
- 6. the time for this to drop by half is half life
- 10. radiation absorbed by paper and air
- 11. when two nuclei join to make a heavier nucleus
- 13. radiation absorbed by thick lead