Atomic Spectroscopy is a technique used to analyze the composition of materials by studying the light emitted or absorbed by atoms. When atoms are energized, they emit light at specific wavelengths, creating a unique spectrum for each element. This spectrum acts like a fingerprint, allowing scientists to identify and quantify elements in a sample. The process typically involves using a spectrometer to measure the intensity of light at different wavelengths. By comparing the observed spectrum to known reference spectra, researchers can determine the presence and concentration of various elements in the sample, making atomic spectroscopy a valuable tool in fields like chemistry, environmental science, and materials analysis.