What is the electron dot structure?

Based on formal charge considerations, the electron-dot structure of CO32– ion has?

• Based on formal charge considerations, the electron-dot structure of CO32– ion has two resonance structures involving one single bond and two double bonds. three resonance structures involving one single bond and two double bonds. two resonance structures involving two single bonds and one double bond. three resonance structures involving two single bonds and one double bond.

• Answer:

  I think you are mistaken for a Lewis structure. An electron dot is simply just the element with the number of valence electrons it has represented by dots. The Lewis structure uses single, double, and triple bonds along with dots, and contains the total number of valence electrons the ion, compound, or molecule possesses. Resonance is the same Lewis structure drawn in a different way. Your answer would be Three resonance structures involving two single bonds and one double bond. Explanation: Carbon is the middle atom that is bonded to three oxygen's. Since there is a total of 24 valence electrons in the ion and each atom must have eight valence electrons, there must be a double bond in between carbon and one of three oxygen's. Since there are three carbons and there can be a double bond between any one of them, there are three resonance structures.