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Answer to Question #26641 in Inorganic Chemistry for Abhishek Kaul

Question #26641
Why is second ionisation enthalpy of alka;i metals exteremely high ?
Expert's answer
The first ionization enthalpy of alkali metals is the energy that is needed to take one electron from the neutral atom. When it is done the ion with the charge +1 has noble gas configuration, that makes the ion very stable. That's why much more energy is needed to remove the second electron from the cation with the noble gas configuration.

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