Across
- 3. Unit of frequency
- 4. Ice represents this phase of water
- 6. An object moving toward us is _____________
- 10. Spectrum we would see from a hot gas cloud
- 11. Highest frequency wave
- 14. Process in which electrons are stripped from atoms
- 16. Fancy name for light
- 17. Subatomic particle that is not in the nucleaus
- 19. Building block of matter
- 20. An element that has more than one “flavor”
Down
- 1. A light bulb gives off this type of spectrum
- 2. An object moving away from us is ______________
- 5. Spectrum we would see if a cloud of gas was between us and a star
- 7. Rainbow of light
- 8. A spectrum is a _____________ for each element
- 9. Ionized gas
- 12. Longest wavelength light
- 13. Positive particle found in the nucleus
- 15. Electrons exist in these levels in atoms
- 18. Unit of power