Ionisation energy

The ionisation energies of tranition elements are:

The factors that influence the ionisation energies are

The factors that influence the ionisation energies are:

Why are the second and third ionisation energies of group 13 elements much higher as compared to their first ionisation energies?

Which is the correct order of ionisation energies ?

If ionising energy of H atom is 13.6 eV, then the second ionising energy of He should be

If ionising energy of ‘H’ atom is 13.6 eV, then what is the second ionising energy of He?2

If ionising energy of H atom is 13.6 eV, then the second ionising energy of He should be