Second ionization energy of an element is higher than its first ionization energy Why ?

Ionization energy of an element depends on :

Define Ionization energy .

What is meant by first ionization energy ?

Why is I_2 of an element greater than its first I_1 ?

Define first and second ionisation potentials. Why second ionisation potential of an element is greater than the first ionisation potential?

Ionization energy is not depending on

Second ioniation energy is higher than first ionisation energy for an element. This is because

The element which has the highest ionization energy :

The first ionization energy of Lithium will be