Study the atomic properties of 2s shell for some atoms. Iraqi Journal of Physics, [S. l.], v. 11, n. 22, p. 20–26, 2019. DOI: 10.30723/ijp.v11i22.348. Disponível em: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/348.. Acesso em: 29 apr. 2024.