Schaeffer, B.2018-05-162018-05-162013-06World Journal of Nuclear Science and Technology, 2013, 3, 1-8http://dx.doi.org/10.4236/wjnst.2013.32A001http://hdl.handle.net/123456789/1443The one million times ratio between nuclear and chemical energies is generally attributed to a mysterious strong force, still unknown after one century of nuclear physics. It is now time to reconsider from the beginning the assumptions used, mainly the uncharged neutron and the orbital motion of the nucleons. Except for the long range Coulomb repulsion, the electric and magnetic Coulomb’s forces between adjoining nucleons are generally assumed to be negligible in the atomic nucleus by the nuclear specialists. The Schrödinger equation with a centrifugal force as in the Bohr model of the atom is unable to predict the binding energy of a nucleus. In contrast, the attractive electric and repulsive magnetic Coulomb forces alone explain quantitatively the binding energies of hydrogen and helium isotopes. For the first time, with analytical formulas, the precision varies between 1 and 30 percent without fitting, adjustment, correction or estimation, proving the electromagnetic nature of the nuclear energyenNuclear EnergyElectromagnetic InteractionHydrogen IsotopesHelium IsotopesBinding EnergyCoulomb LawArticle