Lewis Dot Structures for Polyatomic Ions - This video shows how to draw Lewis dot structures for polyatomic ions. Polyatomic ions are molecular ions or covalent ions. The same rules apply on how to draw their Lewis dot structures. You'll find that these molecules also have single, double and triple covalent bonds.This video also does a good job of explaining how polyatomic ions get their charges, it's cool when you figure it out. Tune in to to learn how to draw lewis dot structures for polyatomic ions. Best wishes in learning. Peace.