I misspelled "fluorine." I think you could have a type-in for that, but also I should suggest you consider adding the metalloids, because they are regular nonmetals with SOME metallic properties. These include: Boron, Antimony, Silicon, Germanium, Tellurium, Arsenic, and sometimes include Polonium and Astatine. See: Wikipedia and also Britannica.
Have given a 'type-in' where you suggest. I thought about 'metalloids' but decided to keep the quiz just to complete non-metals to have it less complicated: Thanks for you suggestion: