isoelectronicadj.
/ˌʌɪsəʊɪlɛkˈtrɒnɪk/ Chemistry and Physics.
(Composed of atoms or molecules) having the same number of electrons. Const. with.
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the world > matter > physics > atomic nucleus > [adjective] > relating to models of the nucleus
Saturnian1904
isoelectronic1928
liquid-drop1939
the world > matter > chemistry > atomic chemistry > [adjective] > relating to electrons > specific
s1890
free1895
isosteric1919
isoelectronic1928
sigma1929
1928 Chem. Rev. 5 155 Vertical lines represent atoms having the same number of external electrons (‘iso~electronic systems’).
1929 Physical Rev. 33 538 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.
1946 Nature 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.
1964 C. 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.
1971 Internat. Jrnl. Quantum Chem. 5 335 Wave functions of the 1S (ground state), 3P and 1P states for the beryllium isoelectronic sequence have been obtained.
This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018).
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adj.1928