Can someone please explain why you would use a spectrometer rather than a simple flame test to identify the atoms in an unknown mixture? I'm guessing that the spectrometre would divide the spectra into a much more specific pattern, so that you could identify the individual elements in the unknown mixure, wheras the flame would only give you a mix of colours, thus giving the flame a single coulour consisting of all of these different colours. So the flame test would make guessing the elements of the unknown mixture impossible. But I'm not sure if this is the best answer I can give to this question? Maybe they are looking for something more specific, or am I just overcomplicating things?