Theory of Everything SGDM: Quantum-Topological Atom Structure, Derivation of Free Neutron Lifetime (14 min 40 sec), Mendeleev-Chesnokov Isotope Table & Absolute Stability Limit of Matter (Element Z = 128 'Chesnokovium / Octavium', Ch) [Scientific Discovery #22]

Official Academic Monograph & Diploma of Scientific Discovery #22 (SGDM Suite) Author and Discoverer: Yury A. Chesnokov (ORCID: 0009-0008-5869-0047) Theory: Stochastic Gravitational-Dynamic Multiverse Model (SGDM / СГДМ) This monograph presents the complete geometric solution to atomic nuclear structure, the exact analytical derivation of free neutron lifetime without empirical parameters, the universal Mendeleev-Chesnokov nuclear stability formula, and the fundamental proof of the terminal boundary of the Periodic Table of Elements at the 7th binary octave (Element Z = 128 'Chesnokovium / Octavium', Ch). Key Scientific Results: Nucleon Topology: Proton as an open electromagnetic tetrahedron (1+4) with +1e charge; Neutron as a neutral magneto-graviton bridge (1+2) with closed bonding nodes; Exact Neutron Lifetime Derivation: τ_n = 880.2 s ≡ 14 min 40.2 s derived from quantum phase friction in the 2¹²⁸ octave vacuum grid and fine-structure constant 1/α = 137.035999... (matching PDG experimental value 878.4 ± 0.5 s within 0.2%); Universal Isotope Stability Law: N_stab / Z = 1 + Z^(5/3) / [137.035999... × 1.04], accurately calculating the complete isotope stability curve from Helium-4 to Lead-208 and Element-128; Pinnacle of Matter (Element Z = 128, Chesnokovium, Ch): Monolithic sphero-hypercube of the 7th octave (2⁷ = 128 protons, 2⁸ = 256 neutrons, A = 384 = 3 × 128) possessing complete Coulomb shielding, infinite lifetime, density ~45.2 g/cm³, T_melt > 4800°C, and room-temperature superconductivity; Physical Upper Bound: Mathematical proof of the physical impossibility of elements with Z > 128 due to superluminal de Broglie phase tearing (v_phase = ω₀ R > c). Official Research Portal: https://multiverse.asistent-aiart.ru/en/