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Compared the 2nd Ionisation enthalpies a...

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

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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.
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SUBHASH PUBLICATION-PUE DEPT. MODEL QUESTION PAPER-PART-D
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