`Ni(II)` compounds are thermodynamically more stable than `Pt(II)`- Justify your answer.

Explanation

(i) The ionisation enthalpy values can be used to predict the thermodynamic stability of their compounds.
(ii) `{:("For Nickel, "I.E_(1)+I.E_(2),=,737+1753),(,=,2490" kJ mol"^(-1)),("For Platinum, "I.E_(1)+I.E_(2),=,864+1791),(,=,"2655 kJ mol"^(-1)):}`
Since, the energy required to form `Ni^(2+)` is less than that of `Pt^(2+), Ni(II)` compounds are thermodynamically more stable than `Pt(II)` compounds.