Category Archives: electron affinity of oxygen

1st electron affinity is usually exothermic as the energy released when the nucleus attracts additional electron is larger than the energy absorbed to overcome inter-electronic repulsion. 2nd electron affinity is always endothermic since an additional electron is added to a negative ion . Energy is absorbed to overcome inter-electronic repulsion between two negatively charged speciesContinue reading “Ist and 2nd electron affinity of oxygen atom”