Across
- 2. The mass of a beta particle (4)
- 3. The metal that blocks gamma radiation (4)
- 4. The number of protons in an alpha particle (3)
- 6. An object that blocks alpha radiation (5)
- 11. The type of metal that blocks beta radiation (9)
Down
- 1. The type of radiation that is made up of a fast-moving electron (4)
- 3. The penetrating power of alpha radiation (3)
- 5. The increase in atomic number caused by a beta particle (3)
- 7. The type of radiation that is made up of 2 protons and 2 neutrons (5)
- 8. The type of radiation made up of a high energy wave (5)
- 9. The decrease in mass number caused by an alpha particle (4)
- 10. The penetrating power of gamma radiation (4)