Answer:
Emission spectra can be used to identify unknown atoms.
Step-by-step explanation:
Emission spectra -
Emission spectra refers to the series of frequencies of an electromagnetic radiations, which is radiated when an excited atom or molecule (i.e., the atom in the higher level of energy ), bounces back to its lower energy level, is called an emission spectra.
The main purpose of using a emission spectra is to determine any unknown atom.
Hence, from the given options of the question,
The correct statement regarding emission spectra is - can be used to identify unknown atoms.