Would you expect the first ionization enthalpies for two isotopes of the same element to be the same or different? Justify your answer.

(N/A) The ionization enthalpy of an atom depends on the number of electrons and the nuclear charge (number of protons).
Since isotopes of the same element have the same atomic number,they possess the same number of protons and electrons.
Therefore,the electronic configuration and the effective nuclear charge experienced by the valence electrons remain identical for both isotopes.
Consequently,the first ionization enthalpy for two isotopes of the same element is the same.