anion
🇺🇸
/ˈænaɪən/
🇬🇧
/ˈænaɪən/
A negatively charged particle, usually an atom or group of atoms that has lost one or more electrons.
In a chemical reaction, when a molecule gains electrons, it becomes an anion and is attracted to the positive electrode.
在化学反应中,当一个分子获得电子时,它变成一个阴离子,并被正电极吸引。