Answer
An atom's ionization energy is the minimum energy that is required to remove an electron from the outermost orbit of the atom.
If we know the ionization energy of an atom, then we know in which orbital the outermost electron is located.
Work Step by Step
An atom's ionization energy is the minimum energy that is required to remove an electron from the outermost orbit of the atom.
If we know the ionization energy of an atom, then we know in which orbital the outermost electron is located.
In general, if the outermost electron is closer to the nucleus, then the ionization energy will be higher.
