Lecture
This lecture delves into the electronic structure of atoms beyond the hydrogen atom, exploring the energy levels and electron configurations of polyatomic atoms. Topics covered include the Hamiltonian, effective nuclear charges, electron configurations, Hund's rule, and atomic properties such as atomic radius and covalent radius. The lecture also discusses the periodic table, quantum numbers, and the filling order of orbitals, providing a comprehensive understanding of the fundamental principles governing the behavior of atoms.