根据价键理论判断下列配位个体的磁矩(μB): [Cu(NH3)4]2+(平面正方形)____________________________; [Ni(CN)4]2-(平面正方形)____________________________; [FeF6]3-(八面体)____________________________; [Pt(NH3)2Cl2](平面正方形)____________________________; [Co(H2O)6]2+(八面体)____________________________。