SEARCH Articles Figures Tables Atomic interactions closed-shell Atomic orbitals closed-shell configuration Atomic shell Atomic-shell closing Atoms alkali clusters, shell closing Atoms shell Atoms with closed shells Closed shell Closed-shell transition metal atom states Dirac-Hartree-Fock Total Energy of Closed-Shell Atoms Electronic shell alkali atom clusters, closing Photoionization closed shell atom Second- and third-order MBPT for closed-shell atoms The closed shell atom