Question

which is the correct lewis dot structure for the compound lithium nitride? a. :n - li: li+1 n - 3li+1 b. :li - n - li: li+1 :n: - 3li+1 c. li+1 d. li+1 b d a c

Explanation:

Lithium nitride (\(Li_3N\)) is an ionic compound. Lithium (\(Li\)) has one valence electron and loses it to form \(Li^+\). Nitrogen (\(N\)) has five valence electrons and gains three electrons to form \(N^{3 -}\) (to achieve an octet). In the Lewis dot structure of ionic compounds, the metal ions (\(Li^+\)) are shown as cations and the non - metal ion (\(N^{3 -}\)) is shown within brackets with its charge and valence electrons. Option \(d\) correctly represents three \(Li^+\) ions and one \(N^{3 -}\) ion (\([:N:]^{3 -}\)) in the Lewis dot structure of \(Li_3N\).

Answer:

D