electronegativity
noun[U]
us/ɪˌlek·troʊˌneɡ·əˈtɪv·ɪ·t̬i/chemistry
theabilityof anatomtoattractelectronsin achemicalbond
单词 | electronegativity |
释义 | electronegativity noun[U] us/ɪˌlek·troʊˌneɡ·əˈtɪv·ɪ·t̬i/chemistry theabilityof anatomtoattractelectronsin achemicalbond Examplesofelectronegativityelectronegativity Chapter 1 starts off with a comprehensive summary of basic chemical principles, such as atomic structure, ionic radii,electronegativityand solubility products. From theCambridge English Corpus An atom'selectronegativityis affected by both its atomic number and the distance between the valence electrons and the nucleus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Electronegativityis a chemical property that describes the tendency of an atom or a functional group to attract electrons (or electron density) towards itself. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The oxidizing tendency of peroxides is related to theelectronegativityof the substituents. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The atomic orbital energy correlates withelectronegativityas more electronegative atoms hold their electrons more tightly, lowering their energies. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Elements in the same group tend to show patterns in atomic radius, ionization energy, andelectronegativity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Conversely, bonds to other atoms are very strong because of fluorine's highelectronegativity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The trifluomethyl group has a significantelectronegativitythat is often described as being intermediate between the electronegativities of fluorine and chlorine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Since fluorine is a relatively small atom with a largeelectronegativity, its covalent radius is difficult to evaluate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Of the elements within d-block, zirconium has the fourth lowestelectronegativityafter yttrium, lutetium and hafnium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The solute and solvent should have similarelectronegativity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Elements with lowelectronegativity, such as most metals, easily donate electrons and oxidize they are reducing agents. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. All group 2 elements are electropositive towards carbon andelectronegativitydecreases down the row. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thiopyrylium salts are less reactive than the analogous pyrylium salts due to the lowerelectronegativityof the sulfur atom. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Their strong acidity is attributed to theelectronegativityof the trifluoromethyl group that stabilizes the negative charge. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
随便看 |
英汉词典包含213609条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。