In the present work we attempt to study the cluster model in the transition metal region. The spectrum fitting method is studied for the selected nuclei (88,90,92^Sr, 92,94^Zr, 98,100^Mo, 100,102,104, 106^Ru, 108,110^Pd and 112,114,116,118^Cd) with proton number (38 < ZT< 48) and mass number (88 < AT < 118). The core cluster charge products are correlated with the transition probability B(E2 2+ -> 0+), the excitation energies and the product of valence nucleon numbers of the parent nuclei.