Energy Crossword

3. A 3d region around the nucleus of an atom that describes an electron's probably location
6. The energy levels contained within a principle energy level.
12. The state of a system higher than that of the ground state
13. The smallest discrete unit of any physical entity.
14. The lowest allowable energy state of an atom
15. A phenomenon in which photoelectrons are emitted from a metal's surface when light of a certain frequency shines on the surface

1. A set of frequencies of electromagnetic waves given off by atoms of an element; consists f a series of fine lines of individual colors
2. A particle of electromagnetic radiation with no mass that carries a quantum of energy
4. A form of electromagnetic radiation that can be detected by the human eye; visible electromagnetic radiation
5. Includes all forms of electromagnetic radiation
7. The height of a wave from the origin to a crest/trough
8. The number of waves that pass a given point per second
9. The capacity to do work or produce heat
10. The movement and pattern formed by electromagnetic radiation
11. The shortest distance between equivalent points on a continues wave; is usually expressed in meter, centimeters, or nanometers