Question

What is the first ionization of oxygen?

Answer 1

Ionization potential:

Ionization energy is the amount of energy necessary to eject the valence electron from the outermost shell of a one-mole atom in its isolated gaseous phase.

First Ionization energy

The amount of energy needed to eject the first electron from an atom's outermost shell is referred to as its initial ionization energy.

The ionization energy of Oxygen:

The first ionization energy of oxygen is $1300\mathrm{kj}/\mathrm{mole}.$