CHEMISTRY COMMUNITY

Could someone please explain what molecular spectroscopy is? This was a bullet point on outline 2:

With respect to electron transitions that give rise to a UV or visible spectrum: understand the difference between electronic transitions in atomic orbitals (atomic spectroscopy) and electronic transitions in molecular orbitals (molecular spectroscopy).

They are actually very similar but basically in molecular spectroscopy, it is the study of light by molecules. it is saying that electrons in molecules can be excite to higher energy states. In atomic spec, it is the interactions of this but in atoms, matter that is independent of bonds.