Non-metals are highly electronegative, meaning they have a strong tendency to attract electrons when forming chemical bonds. This is why non-metals typically gain electrons to form negative ions (anions). Option B is incorrect because non-metals are generally oxidizing agents (accept electrons), not reducing agents (donate electrons). Option C describes metals, not non-metals. Option D is incorrect because non-metals typically form acidic or neutral oxides (like CO2, SO2, NO2), while metals form basic oxides.