Among the element Li, K, Ca, S and Kr which one is expected to have the lowest first ionization enthalpy and which the highest first ionization enthalpy?

Among Be, B and C, which element has the highest first ionisation enthalpy and why ?

Which element has the highest and which has the lowest ionization enthalpy in the periodic table ?

Why 5d transition series elements have higher ionization enthalpies than 4d transition series elements ?

How would you explain the fact that the first ionization enthalpy of sodium is lower than that of magnesium but its second ionization enthalpy is higher than that of magnesium ?

Among NH_3, H_2O and HF, which will you expect to have highest magnitude of hydrogen bonding and why?

Which of the following will have the most negative electron gain enthalpy and which the east negative? (P, S, CI, F). Explain your answer.

Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy?

Name. the element, which has the highest electron gain enthalpy or electron affinity value in the periodic table.