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3.11 Spectroscopy and the Electromagnetic Spectrum

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Light

Light is a form of pure energy and is also called electromagnetic radiation. Light exists as particles called photons, and each photon has a wavelength, a frequency, and an energy. These quantities are related by the equation
E=hcλ=hfE=\frac{hc}{\lambda}=hf
,
where E is photon energy, h is Planck’s constant, c is the speed of light, λ is wavelength, and f is frequency. This means shorter wavelengths correspond to higher frequencies and therefore higher energies.

In this unit

13 lessons

  1. 3.1Intermolecular and Interparticle ForcesPreview lesson
  2. 3.2Properties of SolidsPreview lesson
  3. 3.3Solids, Liquids, and GasesPreview lesson
  4. 3.4Ideal Gas LawPreview lesson
  5. 3.5Kinetic Molecular TheoryPreview lesson
  6. 3.6Deviation from Ideal Gas LawPreview lesson
  7. 3.7Solutions and MixturesPreview lesson
  8. 3.8Representations of SolutionsPreview lesson
  9. 3.9Separation of Solutions and MixturesPreview lesson
  10. 3.10SolubilityPreview lesson
  11. 3.11Spectroscopy and the Electromagnetic SpectrumThis lesson
  12. 3.12Properties of PhotonsPreview lesson
  13. 3.13Beer-Lambert LawPreview lesson

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