Energy

2. the height of a wave from the origin to a crest, or from the origin to a trough
5. a three-dimensional region around the nucleus of an atom that describes an electron's probable location
9. a set of frequencies of electromagnetic waves given off by atoms of an element; consists of a series of fine lines of individual colors
10. the shortest distance between equivalent points on a continuous wave; is usually expressed in meters, centimeters, or nanometers
11. electromagnetic radiation which shows both the properties of waves and particles
12. the energy levels contained within a principal energy level
14. the number of waves that pass a given point per second

1. includes all forms of electromagnetic radiation; the types of radiation differ in their frequencies and wavelengths
3. a phenomenon in which photoelectrons are emitted from a metal's surface when light of a certain frequency shines on the surface
4. the lowest allowable energy state of an atom
6. a particle of electromagnetic radiation with no mass that carries a quantum of energy
7. a periodic disturbance that moves through space
8. the minimum amount of energy that can be gained or lost by an atom
12. a state of physical system (such as an atomic nucleus, an atom, or a molecule) that is higher in energy than the ground state
13. the capacity to do do work or produce heat; exists as potential energy, which is stored in an object due to its composition or position, and kinetic energy, which is the energy of motion