Differentiate between atomic spectrum and molecular spectrum

Atomic spectrum refers to the spectrum of light emitted or absorbed by atoms when they undergo transitions between energy levels. Each element has a unique atomic spectrum, which can be used to identify elements and study their behavior.

On the other hand, molecular spectrum refers to the spectrum of light emitted or absorbed by molecules when they undergo transitions between energy levels. Molecules have more complex spectra compared to atoms, due to the vibrational and rotational energy levels of the molecule as a whole.

In summary, atomic spectrum is specific to individual atoms, while molecular spectrum is specific to molecules.