Across
- 3. particle – Two protons and two neutrons emitted in decay
- 7. – Unstable isotope that emits radiation
- 9. – Negatively charged particle orbiting the nucleus
- 11. – Same element, different neutron count
- 12. particle – High-speed electron from radioactive decay
- 13. – High-energy radiation used in medical imaging
- 15. – Process of gaining or losing electrons
Down
- 1. ray – High-energy electromagnetic radiation from the nucleus
- 2. – State of having a balanced, non-decaying nucleus
- 4. – Positively charged particle in the nucleus
- 5. – Smallest unit of matter that keeps its identity
- 6. – Neutral particle found in the nucleus
- 8. – Dense atomic core packed with particles
- 10. – Spontaneous emission of nuclear radiation
- 14. – Fundamental particle that builds protons and neutrons