4 ms·There is no FL in periodic table. And Teflon is not as stable as believed.by ta988 4y agoThere is no FL in periodic table. And Teflon is not as stable as believed.novok 4y agoHe said 'F', not 'FL'. It is on the periodic table: https://en.wikipedia.org/wiki/Fluorine https://en.wikipedia.org/wiki/Fluorineta988 4y agoThe comment got edited, you just happened to see it after.