In just a second, let's look at Nitromethane. We're going to do a second example in which we're going to draw the resonant forms. So Nitromethane has one N, two O's, one C and three H's. So in order to draw our loose dot structures, let's count the balanced electrons. So we have three balanced electrons from H.
We have four balanced electrons from our carbon. So we have and that means we have five balanced electrons coming from N, and we have two OS.