Final answer:
The Lewis structure of a fluorine molecule is two fluorine atoms each with three lone pairs of electrons single bonded to each other, represented as F:F with dots around the F to denote lone pairs.
Step-by-step explanation:
The correct Lewis structure of a fluorine molecule, F2, can be depicted as F - F, where each fluorine atom has seven valence electrons. Each fluorine shares one electron with the other to form a single bond between them, while the remaining six electrons are distributed as three lone pairs on each fluorine atom. Therefore, the representation is as follows:
F: ... :F
This means each fluorine atom is surrounded by three lone pairs and one shared pair of electrons, making a total of eight electrons around each fluorine, satisfying the octet rule.