Which of the following represents the best Lewis structure for N3–?
Loading ...
Correct Answer: A.
Structure B has a negative 2 charge on one single nitrogen atom, which is not the best structure. Formal charges should always be minimized in the best Lewis structures. Structure C has five covalent bonds to the central neutral nitrogen atom, which is unreasonable. Structure D has an improper distribution of lone pairs and incorrect formal charges. Structure A is the best structure. It has an overall charge of –1 and the most minimal formal charges possible.
Subscribe below to receive the DAT Question of the Day delivered straight to your inbox every morning.
6 Responses to “Lewis Structure of N3-”