Question

Which one of the following statement is incorrect in relation to ionisation enthalphy?

• A. Ionization enthalpy increases for each successive valence shell electron.
• B. The greatest increase in ionization enthalpy is experienced on removal of electron from core of noble gas configuration.
• C. End of valence electrons is marked by a big jump in ionization ethalpy.
• D. Removal of electron from orbitals bearing lower n value is easier than from orbital having higher n value.

Answer 1

The correct option is D Removal of electron from orbitals bearing lower n value is easier than from orbital having higher n value.

Orbitals bearing lower value of n will be more closer to the nucleus and thus electrons will experience greater attraction from nucleus and so its removal will be difficult not easier.