Across
- 4. the particle released in beta decay
- 5. the number of protons in an atom
- 8. the amount of time it takes for half of a radioactive particle to decay
- 9. a helium nucleus lost with nuclear activity
- 12. the opposite of nuclear fission
- 13. a neutral subatomic particle
- 14. an atom splits apart releasing large amounts of energy
Down
- 1. a positively charged subatomic particle
- 2. the release of radioactive substances
- 3. the strongest penetrative ability of the three radioactive releases
- 6. one reaction triggering another
- 7. an atom with a mass number different to the rounded number on the periodic table
- 10. the number of protons and neutrons in an atom
- 11. control center of the cell