Ionization Energy

+**Ionization Energy**

+Ionization Energy is the minimum [energy](/wiki/energy) required to detach an [electron](/wiki/electron) from a gaseous atom or ion. This fundamental property reveals the strength with which an atom holds onto its outermost electrons, significantly influencing its chemical reactivity.

+## See also

+- [Electron Affinity](/wiki/electron_affinity)

+- [Electronegativity](/wiki/electronegativity)