AP Chemistry / Unit 3: Properties of Substances and Mixtures
3.11 Spectroscopy and the Electromagnetic Spectrum
Notes
Different radiation causes different changes:
- Microwave: rotation.
- Infrared: bond vibrations.
- UV/visible: electron transitions.
Practice
Infrared radiation mainly causes:
IR shows bonds.
UV-visible light causes:
Electrons jump energy levels.
Which has the highest energy?
Shortest wavelength.
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