What is Ionisation Enthalpy ?
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Ionization Enthalpy of elements is the amount of energy that an isolated gaseous atom requires to lose an electron in its ground state. Losing of electrons results in the formation of cations. The first ionization energy of element A is the energy required by an atom to form A+ ions.
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Answer: Ionization enthalpy is defined as amount of energy required by an isolated gaseous atom which loses an electron in its ground state.
unit of ionization energy = KJ mol- 1
Ionization enthalpy of element is always positive .
Explanation:
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