among the elements K, Mg, C and N which would show the greatest difference in first and second ionisation enthalpies?
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Answer:
Potassium
Explanation:
potassium potassium show the greatest difference in first and second ionization enthalpy
first ionization enthalpy of potassium is less due to one electron in their last orbit then you gain noble gas configuration
so their first ionization enthalpy is less and second is greater
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