Which electronic configuration of an element has abnormally high difference between second and third ionization energy?

Which electronic configuration of an element has abnormally high difference between second and third ionization enthalpies ?

Which electronic configuration of an element has abnormally high difference between second and third ionization enthalpies ?

The electronic configuration of an element with the largest difference between the 1^(st) and 2^(nd) ionization energies is

Which of the following electronic configuration represents a sudden large gap between the values of second and third ionisation energies of an element?

Which of the following electronic configuration represents a sudden large gap between the values of second and third ionisation energies of an element?

Which of the following electronic configuration represents a sudden large gap between the values of second and third ionisation energies of an element?

The element which has greastest difference between first and second ionisation energy is