| 词汇 | valence-shell |
| 释义 | BETA valence shellcollocation in Englishmeanings of shellThese words are often used together. Click on the links below to explore the meanings. shell noun uk /ʃel/ us /ʃel/ the hard outer covering of something, especially nuts, eggs, and ... See more at shell Examples of valence shellvalence shell It is inert to most common chemical reactions, such as combustion, because the outer valenceshell contains eight electrons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Like cobaltocene, decamethylcobaltocene has a 19 electron count in its valenceshell and is paramagnetic. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The number of electrons in each element's electron shells, particularly the outermost valenceshell, is the primary factor in determining its chemical bonding behavior. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. O molecule has four electron pairs in its valenceshell: two lone pairs and two bond pairs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A carbene is a neutral molecule containing a divalent carbon with six electrons in its valenceshell. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Ab initio calculations have been cited to propose that contributions from d orbitals in the shell below the valenceshell are responsible. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The "s" -sub-shell in the valenceshell is represented as the "ns" sub-shell. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. To obviate this difficulty, the space of possible single-particle states is divided into a core and a valenceshell, by analogy with chemistry. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. But in the valenceshell of silver atoms, there is a single electron whose spin remains unbalanced. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A carbon atom has four electrons in its outermost valenceshell. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, this ion is unstable, because it has an incomplete valenceshell around the nitrogen atom, making it a very reactive radical ion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Period 1 elements obey the duet rule in that they need two electrons to complete their valenceshell. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Or the electron can even break free from its associated atom's valenceshell; this is ionization to form a positive ion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is because in a transition series, the valenceshell electronic configuration of the elements do not change. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Period 2 elements obey the octet rule in that they need eight electrons to complete their valenceshell. 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. |
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