n.负离子，阴离子

The anion is negatively charged due to the excess electrons it possesses.
这种阴离子由于拥有过剩的电子而带负电荷。
In a salt, the cation and anion combine to form a neutral compound.
在盐中，阳离子和阴离子结合形成中性化合物。
The reaction between a base and an acid produces water and a salt composed of a conjugate acid and anion.
碱与酸反应生成水以及由共轭酸和阴离子组成的盐。
Oxygen, when it gains two electrons, becomes an O²⁻ anion.
氧原子获得两个电子后，就变成了O²⁻阴离子。
Sodium chloride (NaCl) dissociates into sodium cations (Na⁺) and chloride anions (Cl⁻) in solution.
氯化钠（NaCl）在溶液中离解为钠离子（Na⁺）和氯离子（Cl⁻）。
Anions play a crucial role in soil fertility by providing essential nutrients to plants.
阴离子在土壤肥力方面起着至关重要的作用，它们为植物提供了必需的营养素。
The anion gap in blood chemistry analysis helps diagnose metabolic acidosis or alkalosis.
血液化学分析中的阴离子间隙有助于诊断代谢性酸中毒或碱中毒。
Iodide ions (I⁻), which are anions, are necessary for the production of thyroid hormones.
碘离子(I⁻)，作为阴离子，是合成甲状腺激素所必需的。
When silver nitrate (AgNO₃) reacts with sodium chloride (NaCl), a precipitate of silver chloride (AgCl) forms along with the release of nitrate anions (NO₃⁻).
当硝酸银(AgNO₃)与氯化钠(NaCl)反应时，会生成氯化银(AgCl)沉淀，并释放出硝酸根离子(NO₃⁻)。
The attraction between a cationic surfactant and an anionic detergent results in their combined use in many cleaning products.
阳离子表面活性剂与阴离子洗涤剂之间的吸引力导致它们常被一起用于许多清洁产品中。