Amphoteric substances

[Molly Posta 1H]

Why is HBrO2 not an amphoteric substance? It could act as a Bronsted acid and donate a proton to a base because it has a hydrogen ion, so what is preventing it from accepting a proton to act as a Bronsted base as well?

[Simrah_Ahmed1J]

I think the best way to figure out which are oxides are amphoteric is whether they include a metalloid or something close to a mettaloid. I have attached a picture of what we were taught about amphoteric, acidic, and basic oxides in lecture, the red line that is drawn is around other oxides that can also often be amphoteric.

[Mia Meza]

From what I read I classify amphoteric substances from Be to Po..... the picture above is a really good representation

[Jack_Pearce_2H]

Im pretty sure the central atom has to be a metalloid or similar to a metalloid (i.g. S,P,C). Br is a strong halogen so it does not have the capability to be amphoteric.