Final answer:
There are several common applications of light emission by elements, such as in lasers, fluorescent dyes and phosphorescent materials, and in chemistry for inferring energies of electrons and driving modern technologies.
Step-by-step explanation:
There are several common applications of light emission by elements.
One common application is in lasers, which are used in communication, entertainment, medicine, and retail sales.
Another application is in fluorescent dyes and phosphorescent materials, which can transform nonvisible electromagnetic radiation into visible light.
Finally, light emission is important in chemistry, as it can be used to infer the energies of electrons within atoms and molecules and is the basis for many modern technologies.