Spectroscopy is one of the most powerful tools available for the study of atomic and molecular structure, and is used in the analysis of a most of the models or samples.
Spectroscopy deals with the study of interaction of electromagnetic radiation with the matter. During the interaction, the energy is absorbed or emitted by the matter. The measurement of this radiation frequency (absorbed or emitted) is made using spectroscopy.
Types of spectroscopy:
1) Atomic spectroscopy
2) Molecular spectroscopy
It deals with the interaction of the electromagnetic radiation with atoms. During which the atoms absorb radiation and gets excited from the ground state electronic energy level to another.
· It occurs from the interation of atoms + electromagnetic radiation
· Atomic spectra is a line spectra
· It is due to electronic transition in an element.
It deals with the interaction of electromagnetic radiation with molecules. This results in transition between rotational, vibrational and electronic energy levels
· It occurs from the interaction of molecules + electromagnetic radiation
· Molecular spectra is complicated spectra
· It is due to vibrational, rotational and electronic transition in a molecule.