I think hydrogen because Hydrogen combined with one atom with oxygen and in hydrogen peroxide. It has two atoms of hydrogen and 2 atoms of oxygen. Therfore it should be a compound.
Answer from: Quest
i wish i could but this one is weird give me abc and i can solve it.
Answer from: Quest
c. electrical charges of ionic bonds.
i hoped this , can i get brainliest plzgod bless you