Answer:
A valence electron from the H atom is harder to remove than from the Na atom because of the higher nuclear attraction, and hence more energy would be required. As a result, the ionization enthalpy of hydrogen is greater than that of sodium.
Answer:
A valence electron from the H atom is harder to remove than from the Na atom because of the higher nuclear attraction, and hence more energy would be required. As a result, the ionization enthalpy of hydrogen is greater than that of sodium.