Account the expected values ??for a single particle to a group of atoms and ions. Baghdad Science Journal, Iraq, Baghdad, v. 3, n. 2, p. 246–253, 2006. DOI: 10.21123/bsj.2006.701. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/701.. Acesso em: 20 dec. 2024.