Calculation of Radial Electron-Electron Distribution function and Expectation Values for Li-Atom in Excited States 1s 2p, 1s 3p and 1s 3d . Baghdad Sci.J [Internet]. 2015 Sep. 6 [cited 2025 Jul. 18];12(3):591-6. Available from: https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/2104