Question

which of the following is the correct lewis dot structure for the molecule fluorine (f2)? (a) f - f ::: (b) f - f :: (c) f = f ::: (d) f≡f :::

Explanation:

Step1: Determine valence electrons of F

Fluorine has 7 valence electrons. In $F_2$, two fluorine atoms share a pair of electrons to achieve an octet.

Step2: Analyze each option

• Option A: Incorrect bonding representation.
• Option B: Correct. It shows a single - bond between two F atoms with 3 lone - pairs on each F atom, satisfying the octet rule.
• Option C: Incorrect double - bond representation (Fluorine does not form double bonds in $F_2$).
• Option D: Incorrect triple - bond representation (Fluorine does not form triple bonds in $F_2$).

Answer:

B. :F - F: with three lone - pairs on each F atom