| 释义 |
化合价huàhéjià一定数目的一种元素的原子跟一定数目的其他元素原子化合的性质。通常以氢的化合价等于1为标准,其他元素的化合价就是该元素的一个原子相化合(或置换出)的氢原子数。{valence; the quality that determines the number of atoms or groups with which any single atom or group will unite chemically; relative combining capacity of an atom or group compared with that of the standard hydrogen atom;}也叫also原子价{yuánzǐjià}。简称{abbr.}价{jià}。 |