Fluorine has 7 valence electrons. Which of the following is true of a fluorine molecule (F2)? a: A pair of electrons will be shared between the fluorine atoms. b: Only 4 valence electrons will travel around each fluorine atom. c: Twelve valence electrons will travel around each fluorine atom, but only 2 will remain around the respective atoms. d: Each fluorine atom will take 1 valence electron from the other, and this will constantly happen back and forth.