| Light and Atoms | 95 |
| 3.1Properties of Light | 96 |
| The Nature of Light--Waves or Particles? | 96 |
| Light and Color | 97 |
| Characterizing Electromagnetic Waves by Their Frequency | 99 |
| White Light | 99 |
| 3.2The Electromagnetic Spectrum: Beyond Visible Light | 100 |
| Infrared Radiation | 101 |
| Ultraviolet Light | 101 |
| Radio Waves | 101 |
| Other Wavelength Regions | 101 |
| Energy Carried by Electromagnetic Radiation | 102 |
| Wien's Law: A Wavelength-Temperature Relation | 102 |
| Extending Our Reach: Taking the Temperature of the Sun | 103 |
| Blackbodies and Wien's Law | 104 |
| 3.3Atoms | 104 |
| Structure of Atoms | 105 |
| The Chemical Elements | 105 |
| 3.4The Origin of Light | 106 |
| 3.5Formation of a Spectrum | 108 |
| How a Spectrum Is Formed | 108 |
| Identifying Atoms by Their Light | 110 |
| Types of Spectra | 111 |
| Depicting Spectra | 112 |
| Analyzing the Spectrum | 112 |
| Astronomical Spectra | 113 |
| 3.6The Doppler Shift | 114 |
| 3.7Absorption in the Atmosphere | 115 |
2002 McGraw-Hill Higher Education