The ressonance structures will look like this:
Work Step by Step
1. Draw the lone pairs. 2. Find which pattern the structure fits. They all will follow the second pattern. 3. Draw the arrows: Follow the patterns we have learned in this chapter. 4. Do the changes based on the arrows. * Don't forget the formal charges! 5. Check if they are significant. Use the three rules we've learned in the chapter. - They all are significant.