I know that Cu+ ( cuprous ) ion is less stable than Cu²+ ( cupric ) ion . There are some reasons explaining this by high hydration enthalpies and low ionization enthalpies . Even though , these reasons explain so much , I wanted to know that how do these dominate over electronic configuration. How can we define more stability in terms of energy; like I can easily see the energy released by hydration and absorbed by ionization, but how can I compare it with the potential energy of Cu+ ion which is lowered by it's stable configuration ?
I searched on internet , but was unable to find data of the potential energy of the ions . Is there any theoretical reason which can explain that why hydration enthalpy and other factors must dominate the stable configuration?