Across
- 2. 8, 1, 12, 6, 12, 9, 6, 5, Decaying time
- 7. 1, 20, 15, 13, 9, 3, 14, 21, 13, 2, 5, 18, Number of protons
- 10. 18, 1, 4, 9, 15, 1, 3, 20, 9, 22, 9, 20, 25, Emits radiation
- 12. 16, 18, 15, 20, 15, 14, Positive charge
- 13. 2, 5, 20, 1, 2nd Greek letter
Down
- 1. 13, 1, 19, 19, 14, 21, 13, 2, 5, 18, Total protons and neutrons
- 3. 1, 12, 16, 8, 1, 1st Greek letter
- 4. 6, 21, 19, 9, 15, 14, Combine isotopes
- 5. 14, 5, 21, 20, 18, 15, 14, Neutral charge
- 6. 18, 1, 4, 9, 15, 9, 19, 15, 20, 15, 16, 5, Radio iso
- 8. 7, 1, 13, 13, 1, 3rd Greek letter
- 9. 6, 9, 19, 19, 9, 15, 14, Split isotopes
- 11. 9, 19, 15, 20, 15, 16, 5, Different atomic species
