[maccha]

I feel like this is a pretty basic question but I'm just a little confused about something my prof talked about. He said that the reason ozonide is so unstable is because oxygen is in the -1 oxidation state and wants to be in the -2 state. I know it's usually found in the -2 state but why does it "want" to be in the -2 state?

[408]

Answer lies in electronegativity