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Teflon is inert unless you really overheat it.

It's not the teflon that is my concern, it's what they have used to get the teflon to stick to the pan.

Pans themselves don't contain significant levels of PFAs, but I agree about the environmental issues.

The 'f' in 'teflon' is the F from the periodic table.

Florine is remarkably not inert.

Teflon is a relatively stable Florine compound.

But as you say, it can destabilize when the pan is used within a few sigma of ideal cooking temperature.

There is no FL in periodic table. And Teflon is not as stable as believed.

He said 'F', not 'FL'. It is on the periodic table: https://en.wikipedia.org/wiki/Fluorine

The comment got edited, you just happened to see it after.

Reactive elements make stable compounds. e.g. sodium + chlorine -> sodium chloride.