| 单词 | valency electron |
| 释义 | > as lemmasvalency electron valency electron n. Physics = valence electron n. at valence n.2 Compounds. ΘΚΠ the world > matter > physics > quantum theory > electron shell > [noun] > electron involved in bond valency electron1908 valence electron1923 1908 Jrnl. Chem. Soc. 94 ii. 138 Two types of electrons are distinguished: the one type, arranged in the form of a ring, represents the positive electricity of the atom, and the second type consists of electrons which neutralise the positive charge of the ring and are separated from the atom when ionisation takes place, these being termed the valency electrons. 1922 F. W. Aston Isotopes 98 The outermost shell of electrons..are therefore called valency electrons. 1973 J. G. Tweeddale Materials Technol. I. iv. 97 Metals tend to be good conductors of heat primarily because there is sharing of valency electrons..and so electron transfer is easy. < as lemmas |
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