Answer
The ressonance structures should look like this:
Work Step by Step
1. Draw the lone pairs.
2. Find which pattern fits the structure.
It is the first one, a lone pair next to a pi bond, for all 3 other structures.
3. Draw the arrows:
Follow the pattern for a lone pair next to a pi bond.
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.