| 词汇 | example_english_silicon-atom |
| 释义 | silicon atomcollocation in Englishmeanings of siliconand atomThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with silicon or atom. silicon noun[U] uk /ˈsɪl.ɪ.kən/ us /ˈsɪl.ə.kən/ a grey chemical element that is found in rocks and sand and is used in making computers and other ... See more at silicon atom noun[C] uk /ˈæt.əm/ us /ˈæt̬.əm/ the smallest unit of any chemical element, consisting of a positive nucleus surrounded by negative electrons. Atoms can combine to form ... See more at atom Examples of silicon atomThese 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. A siliconatom has four electrons in the valence band; phosphorus has five such electrons, and boron three. Monolayers can be made on bare silicon transducer surfaces with the help of covalent bonds between siliconatom and the double bonds of undecylenic acid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example 3-silylhexasilane and its higher homologues are chiral due to their stereogenic center at siliconatom number three. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, the pure semiconductor silicon has four valence electrons which bond each siliconatom to its neighbors. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Many of these are based on a central tetrahedral siliconatom, and some are optically active when central chirality exists. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Secondary carbocations are inherently unstable, however the -silicon effect from the siliconatom stabilizes the carbocation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In their report, the chemists observed that the hydroxyl group was introduced exclusively onto the carbon atom to which the siliconatom was attached. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a silane, with a siliconatom bonded to two methyl groups, a chlorine atom, and a hydrogen atom. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are 28 atomic sites in the unit cell, which are assigned to 3 scandium atoms, 24 boron atoms and one siliconatom. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Corriu and coworkers suggested that greater electropositive character at the pentavalent siliconatom may be responsible for its increased reactivity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The alpha-silicon effect is the destabilizing effect of a siliconatom next to a reaction center with a partial positive charge. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This nucleophile attacks the siliconatom in a nucleophilic displacement with the methylene group as the leaving group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In organopolysilazanes, at least one organic substituent is bound to the siliconatom. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It has a spinel-type structure in which two silicon atoms each coordinate six nitrogen atoms octahedrally, and one siliconatom coordinates four nitrogen atoms tetrahedrally. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The siliconatom makes a direct -bond with one of the carbons of the cyclopentadienyl group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In this tetrahedrane the cage is protected by 4 so-called super silyl groups in which a siliconatom has 3 tert-butyl substituents. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The tetrahedral are made up of 4 oxygen atoms which occupy the summits surrounding either 1 siliconatom or an aluminium atom placed in the center. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In polysilazanes, each siliconatom is bound to two nitrogen atoms and each nitrogen atom to at least two silicon atoms (three bonds to silicon atoms are also possible). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They are kinetically labile, with their decomposition reaction rate increasing with increases in the number of silicon atoms in the molecule. 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. Want to learn more? Go to the definition of silicon Go to the definition of atom See other collocations with silicon See other collocations with atom |
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