In the Lewis dot structure of fluorine, what these dots represents:

$\underset{..}{\overset{.}{:\mathrm{F}:}}$

Lewis dot structures also called electron dot structures in which the total number of valence electrons on an atom is represented by dots. In fluorine, there are seven electrons, so in the Lewis dot structure of fluorine there are seven dots around of fluorine, F.

$\underset{..}{\overset{.}{:\mathrm{F}:}}$