Question

Explain the fact that the first ionisation energy of sodium is lower than that of magnesium but its second ionization enthalpy is higher than that of magnesium

Answer 1

Answer:

electronic configuration of NAand MG

first year electron in both case has to be removed from 3 years minus orbital but the nuclear charge of n A + 11 is lower than that of magnesium + 12 there for first ionization energy of sodium is lower than that of magnesium after the use of first electron the electronic configuration of

Heere electronics to be removed from inert gas configuration which is very stable and hence removal of second electron requires more energy in comparison to magnesium

therefore second ionization enthalpy of sodium is higher than that of magnesium

I hope my answer will help you my dear friends I did I did not do how to solve