Across
- 2. Unstable atomic nucleus releases energy
- 3. Radiation type that penetrates skin
- 5. Radiation type stopped by paper
- 6. Nuclear reaction releasing energy
- 7. Harmful effects of radiation
- 8. Radiation type stopped by metal
Down
- 1. Measures radiation levels
- 2. Particles emitted in radioactive decay
- 4. Time for half of a substance to decay