| 单词 |
isoelectronic |
| 释义 |
isoelectronic, a. Chem. and Physics.|ˌaɪsəʊɪlɛkˈtrɒnɪk|
[f. iso- + electron2 + -ic.]
(Composed of atoms or molecules) having the same number of electrons. Const. with.
1928Chem. Rev. V. 155 Vertical lines represent atoms having the same number of external electrons (‘iso⁓electronic systems’). 1929Physical Rev. XXXIII. 538 The succeeding elements calcium, scandium, titanium, vanadium, etc., are made iso-electronic (that is, having the same number of electrons) with potassium by removing one electron from calcium, two electrons from scandium,..etc. 1946Nature 5 Oct. 480/2 In particular, they have assigned the line at 1,400 cm.-1 to NO2+, comparison with the isoelectronic molecule CO2 having shown that a polarized Raman frequency would be expected to appear in this region. 1964C. Chandler Atomic Spectra (ed. 2) ix. 138 Ions which have only one electron outside an inert gas shell and are therefore isoelectronic with the alkalis. 1971Internat. Jrnl. Quantum Chem. V. 335 Wave functions of the 1S (ground state), 3P and 1P states for the beryllium isoelectronic sequence have been obtained. |
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