Hello Candidate,

Electropositive is the nature of an electronic atom to donate its scared of electrons to a more electronegative atom or compound so that it achieves its valence electrons shell and becomes stable, such as element such as sodium, magnesium etc.

Ionization enthalpy refers to the minimum energy required in order to excite an electron present in the ground state to the maximum excited state of hydrogen like species.

Hope it was informational!!