Why electron gain enthalpy of Kr and Ar are same i.e 96kJ/mol?

1. Theoretically electron gain enthalpy of all the noble gases is zero. Since the octet of these gases is complete and they are very stable.
2. If we deliberately supply an electron to the stable electronic configuration,the process is endothermic and energy is required to be given to the system.
3. So,Electron gain enthalpy is positive and same for all the gases as in all the gases,equal disturbances are causes by disturbing the stable configuration of these gases.
4. So,Ar and Kr have same electron gain enthalpy.

  • -7
What are you looking for?