The interpretation of nuclear decay is based on the structure of the nuclei that is two fundamental phenomena. The inverse electric field of the proton and the electric entity of the macroscopically neutral neutron. At the nucleus scale the neutron behaves as a positively charged particle due to the negative surface charge q=−0.685e, which creates an inverse electric field of positive potential (internal field) as a cloud of positive electrical units. Outside the nucleus the neutron decays with a half-life of 12min. However, the inverse electric field of the nucleus is considered to be the refuge of neutron salvation. A neutron’s decay β− can occur due to the above electrical entity of neutrons and due to their synod (session) in the nucleus, with which the negativity of nucleus decreases due to the positive hill created by the neutrons’ synod. A proton’s decay β+ can occur when the produced proton of a beta decay β− is immersed in a very negative potential of the nuclear field. Also, a neutrons’ synod can cause potential imbalance, increasing the negativity of the field’s region from which the neutrons were removed, resulting in a beta decay β+. It is noted that the exit of the positron e+ takes place through the canyon created by the neutrons’ synod. Alpha decay α occurs in radioactive nuclei and for example in the nucleus uranium-235, that emits a particle α of energy 4MeV, which is called to jump over the potential barrier 27MeV of uranium-235. The above nuclear decaying procedures act as a balance for the potential of the nucleus. This is an excellent compensatory mechanism for maintaining the stability of the nuclei.