Across
- 3. – Ionised gas state
- 6. – Subatomic building block
- 7. – Self-sustaining reaction
- 9. – High-energy radiation
- 10. – Power from nuclear reactions
- 11. – Splitting of a nucleus
- 13. – Electron or positron emission
- 14. – Atom with different neutrons
- 15. – Positive nuclear particle
Down
- 1. – Joining of nuclei
- 2. – Helium nucleus emission
- 4. – Core of an atom
- 5. – Nuclear breakdown process
- 8. – Time for radioactive decay
- 12. – Neutral nuclear particle