Across
- 2. smallest unit of matter
- 3. 50% of any initial value
- 7. a nuclear explosion in chernobyl made it have a lot of...
- 8. an electron or positron from an atomic nucleus
- 10. a wave having individual particles are called
- 11. at the beach you see a lot of these
Down
- 1. a photon of radiation
- 4. basic particle makes "glowing matter"
- 5. the bold up of an object
- 6. the break down of an object
- 9. first letter of Greek alphabet