20
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Covalent Bonding

Question 20 • IA-Chemistry A Survey of Chemistry A

Check all features below that you included in your Lewis structure.

Answer
A
correct number of N and H atoms
B
N as the central atom
C
line (single bond) between N and all three H atoms
D
two dots (electrons) associated with the N atom
E
no other lines or dots

Explanation

For NH₃, the Lewis structure must contain one N atom and three H atoms. Nitrogen is the central atom, with a single bond to each of the three hydrogen atoms. Nitrogen also has one lone pair, shown as two dots; these bonds and dots use all the valence electrons, so there are no additional lines or dots.

AI-written and checked against the verified answer.

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