sentence: Many metals produce flame colors.
sentences_before: A 'flame test' is a test for chemicals. Normally it is used to see whether there are certain metals in a chemical compound. The chemical compound is heated in a flame and a colored flame is made. The colored flame can be turned into its spectrum to analyze it.
sentences_after: The colors are made by electrons jumping up to higher orbits in the atom when it is heated. They fall down soon, putting out light as energy.
concept_name: metal
headings: Flame test
categories: Chemistry