eng Science and Education Publishing International Journal of Physics 2333-4576 2016-01-08 4 1 5 10 10.12691/ijp-4-1-2 IJP2016412 article Saad Naji Abood 1 Laith Ahmed Najim Prof.lai2014@gmail.com 2 Department of Physics, College of Science, AL-Nahrain University, Baghdad, IRAQ Department of Physics, College of Science, Mosul University, Mosul, IRAQ The interacting boson model is applied to the even strontium isotopes, 90-96Sr. Excitation energies, electromagnetic transition strengths, quadrupole and δ(E2/M1) multipole mixing ratios have been described systematically. It is seen that the properties of low-lying levels in these isotopes, for which the comparison between experiment and theory is possible, can be epistemologically satisfied by the Interacting Boson Model-2 (IBM-2). http://pubs.sciepub.com/ijp/4/1/2/ijp-4-1-2.pdf interacting boson model the electric transition probability multipol mixing ratios nuclear shell model Sr Isotopes