중성의 원자나 분자가 전자를 잃거나 얻어 전하를 띠는 이온이 되는 현상
The process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often through exposure to radiation or high heat.
예문:
"The ionization of gas molecules occurs when they are exposed to high-energy radiation."
"Mass spectrometry relies on the ionization of chemical species to determine their mass-to-charge ratio."
"Cosmic rays contribute to the ionization of the Earth's upper atmosphere."