Question

what is ionisation enthalpy?​

Answer 1

Answer:

Ionization Enthalpy is defined as the amount of energy an isolated gaseous atom would take to lose an electron in its ground state. ... Ionization enthalpy is the minimum amount of energy required to detach from an isolated gaseous atom the most loosely bound electron and turn it into a gaseous cation.

Answer 2

Answer:

Or

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

Explanation:

If I am wrong then sorry