Base your answer on the information below and on your knowledge of chemistry. Fireworks that contain metallic salts such as sodium, strontium, and barium can generate bright colors. A technician investigates what colors are produced by the metallic salts by performing flame tests. During a flame test, a metallic salt is heated in the flame of a gas burner. Each metallic salt emits a characteristic colored light in the flame. State how bright-line spectra viewed through a spectroscope can be used to identify the metal ions in the salts used in the flame tests.

Spectral lines are produced by transitions of electrons within atoms or ions. The lines appear because the light at those wavelengths is absorbed by the hydrogen.

Flame Test

The flame check is used for the feasible identification of a metallic or metalloid ion located in an ionic compound. If the compound is located within side the flame of a gas burner, there can be a function color given off this is seen to the bare eye.

The explosion of the firework produces gases, and their electrons are excited. As they go back to their floor state, they emit colored mild consistent with the chemical compounds used: blues from copper compounds, yellow from sulfur, green from barium, and so on.

Bright light spectra:

Spectral lines are produced by transitions of electrons within atoms or ions. As the electrons move closer to or farther from the nucleus of an atom (or of an ion), energy in the form of light (or other radiation) is emitted or absorbed.

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