Energy Crossword

5. The capacity to do work or produce heat.
6. A three-dimensional region around the nucleus of an atom that describes an electron's probable location.
7. An energy variation that transfers energy from point to point in a medium.
9. The shortest distance between equivalent points on a continuous wave.
11. All forms of electromagnetic radiation, with a definitive wavelength and frequency.
12. The minimum amount of energy gained or lost by an atom.
13. A set of frequencies of electromagnetic waves given off by atoms of an element; consists of fine lines of individual colors.

1. A phenomenon in which photoelectrons are emitted from a metal's surface when light of a certain frequency shines on the surface.
2. A particle of electromagnetic radiation with no mass which carries a quantum of energy.
3. Electromagnetic radiation visible to the human eye.
4. The energy levels contained within a principal energy level.
8. The height of a wae from the origin to a crest, or from the origin to a trough.
10. The number of waves that pass a point per second.