The ressonance structures should look like this:
Work Step by Step
1. Draw the lone pairs. 2. Find which pattern the structure fits. The first one follow the fourth pattern, and the others follow the second one. 3. Draw the arrows: Follow the patterns you have learned in the 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.