Question

What an emission spectrum?

Answer 1

Answer:

The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state. ... Therefore, spectroscopy can be used to identify elements in matter of unknown composition.

Answer 2

Answer:

An atomic emission spectrum is the pattern of lines formed when light passes through a prism to separate it into the different frequencies of light it contains. ... Each of these spectral lines corresponds to a different electron transition from a higher energy state to a lower energy state.