5. this graph shows the energy changes during the progress of a reaction involving two molecules. explain what is happening or what the state of the reaction is at a, b, c, and d. is this an exothermic or an endothermic reaction?

A: The bond is breaking

B: Transition state

C: New formed bond

D: Energy releasing

This is an Exothermic reaction

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.