Question

cu2+ is more stable than cu+ in aqueous solution ? explain.

Answer 1

because of atom is fell full shells ao they are stable as compare to CU+2

Answer 2

Answer:

Cu2+ is more stable than Cu+ in aqueous solution because  Cu2+ ion has a greater charge density than Cu+ ion . So, it forms much stronger bonds releasing more energy.

Explanation:

• Electrode potential is more significant in determining stable oxidation state than electronic configuration.

• Cu+ has outermost electronic configuration as 3$d^{10}$ and should be most stable state because of extra stability associated with completely filled d-subshell ($d^{10}$).

• Cu2+ with outer electronic configuration 3$d^{9}$ is more stable than Cu+ because of  high hydration energy in aqueous solution and high lattice energy in solid state of Cu2+ as compared to Cu+.