top of page

Molecules and Light

All molecules have their own unique spectral "fingerprint" based on how the size and structure of the molecule interact with light. Scientists can observe these fingerprints using devices called spectrometer. Annie Jump Cannon used hydrogen's spectral "fingerprint" to categorize stars.

Check out this Molecules and Light simulator from PhET at University of Colorado Boulder to see how some molecules interact with different wavelengths of light!


bottom of page