Question

what is ionisation enthalpy?​

Answer 1

Explanation:

In physics and chemistry, ionization energy or ionisation energy, denoted Eᵢ, is the minimum amount of energy required to remove the most loosely bound electron, the valence electron, of an isolated neutral gaseous atom or molecule.

Answer 2

Ans: The enthalpy change associated with the removal of the first electron from an isolated gaseous atom in its ground state is called first ionization enthalpy.

Hope it helps