After a peer review of data about nuclear fission products, we can see easily that, no clear chemical species, chemical compounds, or chemical processes were available after actual releases of nuclear Fission Products (FP) during planned releases, accidents, or in nuclear detonations. The models based on these ordinary reactions and species could not interpret the behaviors of the fission products or expect their effects in the environment or on the living creatures. To interpret the chemical behaviors of the fission products and their effects on the environment and in the living creatures, a new approach is introduced in this study. It is assumed here that the ionization states of the new born atoms and the long term high temperatures were not dealt with in an appropriate way and they are the reasons of the failure of the former models. Deep Atomic Binding (DAB) approach based on the following: (1) The new born atoms which are highly ionized, 10-12 electrons associated with each nucleus, having a large probability to create bonds between them to form molecules. These bonds are at the L, or M shells and we call it DAB. (2) The molecules stay in the reactor at high temperatures for long periods, so they undergo many stages of composition and decomposition to form giant molecules. By applying DAB approach, field data from Chernobyl and TMI accidents and nuclear detonations could be interpreted with a wide coincidence resulted.