Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Ionization is the process in which an atom or molecule gains or loses electrons, resulting in the formation of charged particles called ions. This can occur through various means such as heating, chemical reactions, or exposure to radiation.