Define ionisation enthalpy.

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Nadira Khan

Ionisation enthalpy---The minimum amount of energy required to remove the most loosely bound electron,valence eleteon,of an isolated gaseous ago,molecule or ion.
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The minimum amount of energy required to remove the most loosely bound electron ,valence electron,of an isolated gaseous molecule, atom or ion
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Ionisation enthalpy It is the energy required to remove the outermost electron from an atom in its isolated gaseous state.
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