![]() ![]() ![]() The results constitute a new method for the representation of the chemical Element’s isotopes in the Z-NE plane. The Excess Neutron (EN) number of the isotope ZX A of the element X was calculated by the equation: EN = A − 2Z. An idea of the present work is contained in a poster presentation at the 15 th International Conference on Condensed Matter Nuclear Science: Rome 2009. , using the tools of the Information Theory. Identical conclusions where reached, Bonchev D. Recently Mao J., guided by the most abundant isotope of each Element, proposed the atom’s nuclear structure as the root of the periodic table. Such a representation contains the basic elements of both the nuclear and electronic atom’s compartments. To provide the ground for the discussion of the above ideas, it was decided to employ the representation of the chemical Elements isotopes by the Neutron Excess number. Properties like the diagonal behavior, Li and Be have similarities with Mg and Al respectively, or the knight’s move, whereby Zn resembles Sn, may be of nuclear origin. Mendeleev maintained that, in addition to the periodic properties, each element has its own personality. Besides the strong electrostatic interaction between the nucleus and the electrons, a cross-talk of electromagnetic nature takes place between the atom’s main compartments: the analysis of atom’s electronic spectra allows the retrieval of important nuclear information. We suggest here that subtle influences exist between the nuclear and the electronic structure, the latter, likely dictated by the nuclear one. So different compartments constitute, nevertheless, stable and defined objects: the atoms of the chemical Elements. The nuclear structure is still an open field. While the noble gases numbers satisfactory describe the chemical Elements electronic structure and properties, this is not the case for the magic numbers. Two distinct branches of physics, nuclear and atomic, describe the above compartments notably ruled by two different sets of numbers: 2, 8, 20, 28, 50, 82, 126 the proton-neutron nuclear magic numbers and 2, 10, 18, 36, 54, 86 the noble gases electron numbers, respectively. The heavy central nuclear, r = 10 −15 m and close to 100% of the atomic mass, and the external electronic cortex, r = 10 −10 m and close to 100% of the atomic volume, appear as very distinct and somehow independent atom’s compartments. Following migration at the star periphery, the reduced temperature and pressure allow nuclei to acquire the necessary electrons to become the stabilized atoms constituting the chemical Elements of our world. Atomic nuclei birth takes place in the star interior at temperatures and pressures allowing their nucleosynthesis. ![]()
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