Huda M. Tawfeek, Study of Even-Even 20-30Mg Isotopes using Shell Model Calculations, Journal of Engineering and Applied Sciences, Volume 14,Issue 12, 2019, Pages 4097-4101, ISSN 1816-949x, jeasci.2019.4097.4101, (https://makhillpublications.co/view-article.php?doi=jeasci.2019.4097.4101) Abstract: By utilizing the effective interactions namely, USDA, W, USDB and SU3SD in the shell model code NuShellX@MSU, we had performed shell model calculations on a large-scale for SD-shell for the isotopes 20-30Mg. The calculations of binding energy and energy levels are in good agreement with to the experimental data and the best effective interaction is USDA for this mass region. Keywords: Shell model;binding energies;NuShellX@MSU;large-scale;USDA;interaction