Fernández Varea, José MaríaLee Alcober, Maria2022-10-102022-10-102022-02https://hdl.handle.net/2445/189773Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2022, Tutor: José M. Fernández-VareaThe purpose of this work is to study the non-relativistic ground-state energy of 2-electron atoms and ions by means of variational methods. We incorporate radial correlation effects considering an open-shell wave function with different spatial orbitals. First, the corresponding analytical expressions for the energy of the system as a function of the variational parameters must be deduced. Then, the energy is minimized following two methods. The results for various values of Z are compared to more sophisticated calculations. Lastly, the magnetic susceptibility and the atomic form factor for these systems, introducing radial correlation, are considered5 p.application/pdfengcc-by-nc-nd (c) Lee, 2022http://creativecommons.org/licenses/by-nc-nd/3.0/es/ÀtomsEstat fonamentalTreballs de fi de grauAtomsGround stateBachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess