2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/131456Upper and lower bounds are derived for the ground-state energy of neutral atoms which for $Z\to\infty$ both involve the limits of exact Green's functions with one-body potentials. The limits of both bounds are shown to coincide with the Thomas-Fermi ground-state energy.LaTeX with PTPTeX class, 7 pages, no figureQuantum PhysicsA Derivation of the $Z\to\infty$ Limit for Atomstext