Alkaline earth metals always form divalent cations even through their second ionization enthalpies are almost double than their first ionization enthalpies . Explain .

Alkaline earth metals always form divalent cations even through their

1.	Alkaline earth metals always form divalent cations even through their second ionization enthalpies are almost double than their first ionization enthalpies . Explain .
Answer» <html><body><p></p>Solution :In the solid state , higher enthalpy of lattice formationby `M^(2+)` ions (as compared to `M^(+)`ions) more than compensates the higher <a href="https://interviewquestions.tuteehub.com/tag/second-1197322" style="font-weight:bold;" target="_blank" title="Click to know more about SECOND">SECOND</a> ionization enthalpies of <a href="https://interviewquestions.tuteehub.com/tag/metals-1094891" style="font-weight:bold;" target="_blank" title="Click to know more about METALS">METALS</a> and in <a href="https://interviewquestions.tuteehub.com/tag/aqueous-2440179" style="font-weight:bold;" target="_blank" title="Click to know more about AQUEOUS">AQUEOUS</a> solution , higher enthalpy of <a href="https://interviewquestions.tuteehub.com/tag/hydration-1033911" style="font-weight:bold;" target="_blank" title="Click to know more about HYDRATION">HYDRATION</a> of `M^(2+)` ions (as compared to `M^(+)` ions) more than compensates the higher second ionization enthalpy</body></html>