Across
- 3. positively charged particle made of two protons and two neutrons
- 5. energy emitted from an atom when an electron moves down energy levels
- 7. wavelength that is just shorter than visible light
- 11. an atom with an unstable nucleus
- 12. two separate nuclei combine to form a larger nucleus
- 13. type of reaction where neutron release triggers more reactions
- 14. charged particles and energy that are emitted from the nuclei of radioisotopes
- 16. a nuclear atom breaking apart releasing energy and neutrons
- 19. type of test where colors of cations can be observed
- 20. conversion of atoms from one element to another by nuclear means
- 23. state of matter where the atoms have been stripped of electrons
- 24. atomic number 92 atomic mass 235 one of the main sources of nuclear energy
- 25. radiation that occurs naturally in the environment
- 27. a penetrating ray of energy emitted by an unstable nucleus
Down
- 1. a particle of light energy
- 2. longest type of wave in the EMS
- 4. radioactive product of spent nuclear reactions that is devastating to the environment
- 6. process where uncharged nucleus emits charged particles
- 8. wavelength that is just longer than visible light
- 9. the time required for one half of a radioisotope to decay
- 10. electron emitted by an unstable nucleus
- 15. nuclear power plant disaster in Ukraine 1986
- 17. atomic number 94 atomic mass 239 one of the main sources of nuclear energy
- 18. elements with atomic numbers greater than 92
- 21. subatomic particle theorized to be among the basic units of matter
- 22. this is the smallest possible mass of fissionable material that can sustain a chain reaction
- 26. acronym for the colors of visible light