الخلاصة

In this paper Yb170-176 even isotopes have been studies by the interacting boson model (IBM-1) to determine the nucleus shape by studying the surface potential energy using the equations of Hamilton function . In addition, the program IBMT-1 was used for evaluating the reduced transition probability B(E2). The obtained results for 170-176 Yb were reasonably in good agreement with the previous experimental and theoretical values . According to the IBM , It was found that these isotopes belong to the rotational region SU(3).