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.

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.

Nitrogen has the highest first Ionization potential.

Ionization Potential

The electron affinity of lead is 35.1 kJ mol-1. The first ionization potential is 7.4167 eV, the second 15.028 eV, and the third 31.943 eV.