Across
- 3. Negatively charged subatomic particle
- 7. Energy emitted in waves or particles
- 9. Decay process of unstable atomic nuclei
- 10. Atom's dense core with protons and neutrons
Down
- 1. Neutral particle in an atomic nucleus
- 2. Heavy element used in nuclear fuel
- 3. Capacity to do work or produce heat
- 4. Weapon powered by nuclear fission or fusion
- 5. Positively charged atomic particle
- 6. Smallest unit of matter with properties of an element
- 8. Pure substance consisting of one type of atom