Across
- 2. the largest and slowest moving particle
- 6. the part of an atom that is composed of protons and neutrons
- 7. an isotope that can be induced to fission by capturing a thermal nuetron
- 8. atoms of the same elements with different number of neutrons
- 10. the theory that explains gas behavior by describing gas particles as tiny, constantly moving objects that collide with each other
- 14. solidified in concrete and the buried
- 18. falls between alpha and gamma in the terms of energy levels
- 20. the cycle process of mining, milling, and enriching uranium to create fuel
- 22. can be transformed into glass and then sealed in stainless steel containers, then buried
- 23. the spliting of a heavier nucleus into a lighter nucleus
- 24. the object that can stop alpha particles
- 25. the splitting of a smaller nucleus into a larger nucleus
- 26. forces that cause protons and neutrons to be attracted to each other
- 27. can be used to help treat cancer
- 28. a graph of the number of radioactive parent nuclei remaining in a sample as a function of time
- 30. gamma rays are used in radiation therapy to treat cancer
- 31. a device that makes the paths of subatomic particles visible as trails of droplets
Down
- 1. when a nucleus decays, particles and energy are emitted
- 3. compacted or incinerated in a container that is buried in a landfill
- 4. the process of changing one element into a different element
- 5. the power source of the stars
- 9. the worst industrial accident in human history
- 11. travels at the speed of light and is the fastest
- 12. the time needed for half of a sample of a radioisotope to decay
- 13. the invisible area around a magnet or moving electric charge
- 15. loses
- 16. a type of decay in which a proton-rich atomic nucleus absorbs one of its own inner orbital electrons
- 17. the least penetrating type of radiation
- 19. the process of a nucleus decaying and emitting energy and matter
- 21. where the electrons are found in a particle
- 29. the most penetrating type of radiation