Radiation
Across
- 2. least penetrating source of radiation
- 4. alpha is used in this type of detector
- 6. time taken for activity to reduce by half
- 7. an EM wave
- 9. alpha is the most
- 10. beta has this type of charge
Down
- 1. this is what happens to sources over time
- 3. an alpha particle is made of this type of nucleus
- 5. stopped by aluminum
- 8. the number of decays per second