The role of size in modifying the properties of a material has not been exploited until recently. On the basis of interatomic potentials, the structure of some clusters are special. Nanocrystalline powders can be used to synthesize materials with physical processing such as sintering. In previous papers, fullerenes, Sc clusters, Sc-cluster endohedral fullerenes,1 graphite models and Sc hexagonal close packing were studied.2 Here, the following semimetallic clusters have been calculated: Si/Ge/GaAs. The interacting induced dipoles polarization model implemented in program PAPID3 is used for the calculation of the molecular dipole-dipole polarizability . The method is tested with Sin, Gen (n 10) and GanAsm (n,m 4) small clusters. Program PAPID has been used for the calculation of the dipole-dipole polarizability , with the interacting-induced-dipoles polarization model that calculates tensor effective anisotropic point polarizabilities1,2 by the method of Applequist et al.. The bulk limit for the polarizability is estimated from the Clausius-Mossotti relationship. The results for the polarizability are in agreement with reference calculations from J. R. Chelikowsky carried out within the density functional theory.4 The clusters are all more polarizable than what one might have inferred from the bulk polarizability. Previous experimental work have yielded the opposite trend for somewhat larger clusters. On varying the number of atoms, the clusters show numbers indicative of particularly polarizable structures. The polarizability trend for these clusters as a function of size is different from what one might have expected. The high polarizability of small clusters is attributed to arise from dangling bonds at the surface of the cluster.