| 单词 | periodic law |
| 释义 | > as lemmasperiodic law periodic law n. Chemistry the law that the chemical elements, when listed in order of their atomic numbers (originally, atomic weights), fall into recurring groups, so that elements with similar properties occur at regular intervals. ΘΚΠ the world > matter > chemistry > elements and compounds > periodicity > [noun] law of octaves1865 periodic law1872 periodic system1875 period1879 periodicity1879 periodic classification1881 periodic table1890 1872 London, Edinb., & Dublin Philos. Mag. 4th Ser. 43 251 The regular progression in physical and chemical properties observable in members of the same family..are either consequences of, or closely related to, these ‘periodic laws’. 1907 Science 4 Jan. 10/2 Professor J. J. Thomson has succeeded in picturing the periodic law as an almost immediate consequence of the atomic structure which he has proposed. 1996 Isis 87 595 The reception of the periodic law of the elements..has attracted only a handful of historians, although the story of its discovery and verification is well known. < as lemmas |
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