| 释义 |
离子lízǐ原子或原子团失去或得到电子后叫做离子。失去电子的带正电荷,叫正离子(或阳离子);得到电子的带负电荷,叫负离子(或阴离子)。{ion; electrically charged atom or group of atoms, the electrical charge of which results when a neutral atom or group of atoms loses or gains one or more electrons during chemical reactions, by the action of certain forms of radiant energy, etc.; the loss of electrons results in a positively charged ion (cation), the gain of electrons results in a negatively charged ion (anion)} |