What type of spectrum is produced by flame emission spectroscopy?

Flame emission spectroscopy produces a line spectrum. This occurs because the technique involves heating a sample in a flame, which provides enough energy for the electrons in the atoms of the sample to become excited. When these electrons return to their lower energy states, they release energy in the form of light.

The emitted light consists of discrete wavelengths corresponding to specific electronic transitions of the elements present in the sample. Each element has a unique set of energy levels, leading to a unique pattern of spectral lines. These spectral lines appear as distinct lines on the spectrum, rather than a continuous range of colors.

This characteristic of emitting specific wavelengths creates a signature or 'fingerprint' for each element, allowing for the identification of elements within the sample being analyzed while producing a clear and identifiable line spectrum. Other types of spectra, like a continuous spectrum, would show a broad range of colors without the distinct lines that are characteristic of flame emission spectroscopy.