Question

consider the lewis dot structures of lithium and fluorine atoms.
li ·f:
which lewis dot structure best represents the compound formed when lithium and fluorine react?

Explanation:

Step1: Analyze the electron transfer

Lithium (Li) has 1 valence electron. It donates this electron to achieve a stable electron configuration (similar to helium). Fluorine (F) has 7 valence electrons. It accepts 1 electron to achieve a stable octet (similar to neon).

Step2: Determine the ion charges and Lewis dot structure

When Li donates an electron, it forms \(Li^{+}\). The Lewis dot structure for \(Li^{+}\) is \([Li]^{+}\) (since the valence electron is lost). When F accepts an electron, it forms \(F^{-}\). The Lewis dot structure for \(F^{-}\) is \([:\ddot{F}:]^{-}\) (the extra electron is accounted for in the structure).

Answer:

The second option \([Li]^{+}[:\ddot{F}:]^{-}\)