AP Chemistry 3.11.A—Explain the relationship between a region of the electromagnetic spectrum and the types of molecular or… Concept

Explain the relationship between a region of the electromagnetic spectrum and the types of molecular or electronic transitions associated with that region

Differences in absorption or emission of photons in different spectral regions are related to the different types of molecular motion or electronic transition:
- i. Microwave radiation is associated with transitions in molecular rotational levels.
- ii. Infrared radiation is associated with transitions in molecular vibrational levels.
- iii. Ultraviolet/visible radiation is associated with transitions in electronic energy levels.