Question

The elements of 3d transition series are given as:

Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn

Answer the following:

Copper has exceptionally positive `E_(M^(2+)//M)^°` value, why?

Answer 1

For copper, the enthalpies of atomization and ionization added together are greater than the enthalpy of hydration. Copper has a positive value of `E_(Cu^(2+)//Cu)^°` as a result.