Across
- 5. alpha is used in one of these
- 10. Beta is stopped by this
- 11. when radioactive substance get inside someone
- 12. The time it takes for half the radiation to break down
- 13. Gamma does this to medical equipment
- 14. when someone is exposed to radiation
- 15. gamma is stopped by this
Down
- 1. Came up with the plum pudding model
- 2. Type of radiation that is an electron
- 3. Type of radiation that is pure energy
- 4. Carried out the gold leaf experiment to show there was a nucleus
- 6. Alpha is best at this
- 7. The type of radiation that is always there
- 8. Type of radiation that is like a helium nucleus
- 9. Alpha is stopped by this