| 单词 | valence electron |
| 释义 | > as lemmasvalence electron valence electron n. [translating German valenzelektron (J. Stark 1908, in Physikal. Zeitschr. 9 85/1)] any of the electrons of an atom that are involved when it forms a bond with another atom, viz. those in the outer shell. ΘΚΠ the world > matter > physics > quantum theory > electron shell > [noun] > electron involved in bond valency electron1908 valence electron1923 1923 Kramers & Holst Atom & Bohr Theory of its Structure vii. 206 The last group [of electrons] is naturally of a very different nature from the first; they are ‘valence electrons’. 1974 D. M. Adams Inorg. Solids i. 3 Three factors were considered as fundamental in alloy structures: (a) size of the atoms; (b) their relative electronegativities; (c) the valence-electron concentration. < as lemmas |
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