Across
- 1. the ______ of a nucleus depends on the ratio of protons to neutrons
- 8. any energy emitted from a source
- 9. The combining of atomic nuclei
- 10. Prevents overheating
- 12. large atoms become clustered, triggering fission in neighboring atoms
- 15. high energy emitted from atoms
- 17. ______ is released when an atom has to many neutrons
- 18. particles of radiation that can be blocked by paper
- 20. turns mechanical to electrical energy
- 22. radioactive material that is propelled into the atmosphere
- 23. hydrogen bombs use 2 _______ of hydrogen - deuterium,and tritium
- 25. nuclear core becomes so hot it melts
Down
- 2. any wave length or frequency able to remove electrons from atoms
- 3. given amount of time needed for half of the sample to decay
- 4. generates the initial neutrins used for an atomic weapon
- 5. particle within an atom with no charge
- 6. amount of radiation exposure
- 7. multi low-level radiation sickness
- 11. converts a neutron to a proton
- 13. rods are collected together into _____
- 14. particle with an atom with a negative charge
- 16. The splitting of of a nucleus into smaller nuclei
- 19. cluster of fuel; enough concentration of neutrons to sustain a fission reaction
- 21. center point of an atom holding the protons and neutrons
- 24. particle within an atom with a positive charge