Compared the 2nd Ionisation enthalpies and Hydration enthalpies of Alkali and Alkaline earth metals/ions.

Compared the 2nd Ionisation enthalpies and Hydration enthalpies of Alk

1.	Compared the 2nd Ionisation enthalpies and Hydration enthalpies of Alkali and Alkaline earth metals/ions.
Answer» Solution :Alkali metals have higher value of 2nd IONIZATION ENTHALPY than alkaline earth metals since they achieve as STABLE noble GAS configuration after loosing 1 electron from `ns^(1)` shell. Alkaline earth metal ions have higher value of HYDRATION enthapy because of their small ionic size than alkali metals.