F
Correct Symbol for Fluorine
The correct chemical symbol for fluorine is F. It follows the international element symbol system and is not ℉ or Fl.
Quick Answer
If you want to represent the chemical element fluorine, use the uppercase letter F.
Common Confusion
`F`: the correct chemical symbol for fluorine.
`℉`: the Fahrenheit sign, not an element symbol.
`Fl`: may appear as an abbreviation in text, but it is not the standard chemical symbol.