fizyka: Island of stability

Evidence: 54 • authority: 72

In nuclear physics, the island of stability is a predicted set of isotopes of superheavy elements that may have considerably longer half-lives than known isotopes of these elements. It is predicted to appear as an "island" in the chart of nuclides, separated from known stable and long-lived primordial radionuclides. Its theoretical existence is attributed to stabilizing effects of predicted "magic numbers" of protons and neutrons in the superheavy mass region. Several predictions have been made regarding the exact location of the island of stability, though it is generally thought to center near copernicium and flerovium isotopes in the vicinity of the predicted closed neutron shell at N =…

Evidence: 41 • authority: 88

Mathematical Pattern Analysis of the Periodic Table to Predict the Stability of Superheavy Elements and Location of the Island of Stability.. This study presents a hybrid approach combining empirical data analysis and the semi empirical mass formula (SEMF) to investigate nuclear stability and predict properties of superheavy elements. Using data up to Oganesson, polynomial regression was applied to model trends in neutron number, relative atomic mass, neutron to proton ratio and binding energy per nucleon. To provide a physical basis for these trends, the SEMF was incorporated, accounting for key nuclear interactions such as volume effects, Coulomb repulsion and neutron-proton asymmetry. Th…

Evidence: 41 • authority: 88

Mathematical Pattern Analysis of the Periodic Table to Predict the Stability of Superheavy Elements and Location of the Island of Stability.. This study presents a hybrid approach combining empirical data analysis and the semi empirical mass formula (SEMF) to investigate nuclear stability and predict properties of superheavy elements. Using data up to Oganesson, polynomial regression was applied to model trends in neutron number, relative atomic mass, neutron to proton ratio and binding energy per nucleon. To provide a physical basis for these trends, the SEMF was incorporated, accounting for key nuclear interactions such as volume effects, Coulomb repulsion and neutron-proton asymmetry. Th…

Evidence: 29 • authority: 72

Superheavy elements, also known as transactinide elements, transactinides, or super-heavy elements, or superheavies for short, are the chemical elements with an atomic number of at least 104. The superheavy elements are those beyond the actinides in the periodic table; the last actinide is lawrencium (atomic number 103). By definition, superheavy elements are also transuranium elements, i.e., having atomic numbers greater than that of uranium (92). Depending on the definition of group 3 adopted by authors, lawrencium may also be included to complete the 6d series. Glenn T. Seaborg first proposed the actinide concept, which led to the acceptance of the actinide series. He also proposed a tra…

Evidence: 24 • authority: 80

Nuclei in the "Island of Stability" of Superheavy Elements