Fill in the blank. As wavelength increases, energy (increases, decreases) .
The Heisenberg uncertainty principle says that it isn't possible to know for a particle simultaneously.
The stationary state with the lowest energy is called the .
Respond to the following based on your reading.

Explain why you don't notice that objects around you have a wavelength.
Describe the energy change when an electron moves from one energy level in an atom to another, both to a higher energy state and to a lower energy state. Tell whether a photon is absorbed or released in each case.
Match the term on the left with the best description on the right.

Term Description
6. Photon a. Having characteristics of both a wave and a particle
7. Spectral lines b. A discrete amount of energy
8. Excited c. The range of different types of electromagnetic radiation (light, x-rays, ultraviolet radiation, and so on)
9. Quantum d. States with higher energy than the ground state
10. Electromagnetic spectrum e. Discrete pattern of narrow bands produced by heated gases
11. Wave-particle duality f. A particle of electromagnetic radiation