Question

Is boron more electropositive than oxygen?

Answer 1

And thus across a Period (from RIGHT to LEFT as we face the Table), fluorine is more electronegative than oxygen , which is more electronegative than nitrogen , which is more electronegative than carbon , which is more electronegative than boron

Answer 2

aluminium is larger in size as compared to boron therefore, it will easily donate its electrons. As a result, aluminium will be most electropositive element out of the given options.

I hope you understand