Question

select the correct answer. which is the correct lewis dot structure of nh2? h—n—h h—n—h a. b. n—h—h h—n—h c. d. h—n—h e. a. a b. b c. c d. d e. e

Explanation:

Nitrogen (N) has 5 valence electrons and hydrogen (H) has 1 valence electron. In $NH_2$, there are two N - H single bonds and one lone - pair of electrons on the nitrogen atom. In the Lewis dot structure, the nitrogen atom is in the center, bonded to two hydrogen atoms, and has a lone - pair of electrons represented as two dots on the nitrogen. Option B shows the correct Lewis dot structure with two N - H bonds and a lone - pair on N.

Answer:

B. H—N—H with a single dot above the N