Linked from
The 27 pages that link to Flame test, each with the reason it gives.
PotassiumRelated: Potassium ions produce a pale violet flame, though sodium emission can mask it.
SodiumRelated: Sodium’s strong yellow emission makes it readily detectable in a flame test.
Robert BunsenRelated: Bunsen used flame colors as an early clue to the spectra of elements.
BariumRelated: Barium salts can produce a pale green flame, a classic qualitative clue.
Bunsen burnerRelated: A burner supplies the flame used to excite atoms in the sample.
StrontiumRelated: Strontium salts produce a vivid crimson-red flame.