IMAT 2011 Q60 [Bond Formation]

How many nitrogen electrons are involved in bond formation in {HONO_2}?

A. 3
B. 4
C. 5
D. 6
E. 7

Nitrogen belongs to group 15 on the periodic table which means that it has 5 valence electrons. Oxygen belongs to group 16 and has 6 valence electrons. Thus, the correct answer is C.

Learning how to draw lewis structure quickly is very important for the IMAT exam, you can use the following video as a reference: