Across
- 2. Number of waves passing a point per second
- 6. indicates the shape of an orbital
- 7. The total mass of an atom, mostly from protons and neutrons.
- 9. Unit of frequency equal to one wave per second
- 11. Model describing electrons in fixed energy levels
- 13. Distance between corresponding points on adjacent waves
- 16. Lowest energy state of an atom
- 17. Emission of electrons from a metal when light hits it
- 18. Process where an atom releases energy
- 19. Numbers describing electron properties
- 20. A packet of light energy
- 21. Element with a famous line-emission spectrum
Down
- 1. Principle stating you cannot know position and momentum exactly
- 3. Higher energy state of an atom
- 4. indicates the main energy level occupied by an electron
- 5. Negatively charged particles that move around the nucleus.
- 8. When your mouth forgets the lesson and starts a mini conversation instead.
- 10. Region of space where an electron is likely found
- 12. The equation that relates energy to frequency
- 14. Process where an atom gains energy
- 15. The number that tells how many protons are in an atom.