Ionization enthalpy is the energy required to remove an electron from an atom or molecule. It is an endothermic process, meaning that the energy is absorbed...
Ionization enthalpy is the energy required to remove an electron from an atom or molecule. It is an endothermic process, meaning that the energy is absorbed from the system.
Electron gain enthalpy is the energy released when an electron is added to an atom or molecule. It is an exothermic process, meaning that the energy is released into the system.
For example, the ionization enthalpy of hydrogen is 1-793 kJ/mol, meaning that it takes 1-793 kJ of energy to remove an electron from a hydrogen atom. The electron gain enthalpy of oxygen is 0.00 kJ/mol, meaning that it releases 0.00 kJ of energy when an electron is added to an oxygen atom