Yes. If the units are eV (electron volts) this is called ionization potential,

if the units are kJ/mol then this ionization energy.

The conversion between the units is:-

96.485 kJ/mol = 1 eV/particle)

Historically it was always called ionization potential as that reflected the method of measurement.

Nitrogen has the highest first Ionization potential.

Ionization Potential

Ionization potential is the energy required to remove one electron from an atom in the gaseous state. The units may be eV(electron volts) or kJ/mol. These are readily interconverted.

Usually the ionization potentials for successive electrons are quoted as the first ionization potential, second ionization potential etc.

The ionization potential for unionized helium is 24.6 eV, the potential for singly ionized Helium is 54.4 eV. Helium has only two electrons, so there is no way to ionize the doubly ionized helium. (So there also is not a potential associated with this process.)