| 单词 | amphoterism |
| 释义 | > as lemmasamphoˈterism amphoˈterism n. the capacity to act as an acid or as a base. ΘΚΠ the world > matter > chemistry > chemical properties > [noun] > capacity to act as an acid or base amphoterism1937 1937 J. H. Yoe Chem. Princ. xvi. 164 Amphoterism and also the degree of acidic and basic ionization of amphoteric hydroxides are related to the position of their metallic elements in the periodic table. 1957 Sienko & Plane Chem. xvii. 363 Some elements, such as chromium, show amphoterism in one oxidation state but not in another. 1990 D. F. Shriver et al. Inorg. Chem. v. 161 An important issue in the d block is the oxidation number necessary for amphoterism. < as lemmas |
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