单词 | valence shell |
释义 | BETA Examples ofvalence shellDictionary> Examples ofvalence shell valence shellisn’t in the Cambridge Dictionary yet. You can help! Add a definition It is inert to most common chemical reactions, such as combustion, because the outervalenceshellcontains eight electrons. From Wikipedia ![]() Like cobaltocene, decamethylcobaltocene has a 19 electron count in itsvalenceshelland is paramagnetic. From Wikipedia ![]() The number of electrons in each element's electron shells, particularly the outermostvalenceshell, is the primary factor in determining its chemical bonding behavior. From Wikipedia ![]() O molecule has four electron pairs in itsvalenceshell: two lone pairs and two bond pairs. From Wikipedia ![]() A carbene is a neutral molecule containing a divalent carbon with six electrons in itsvalenceshell. From Wikipedia ![]() Ab initio calculations have been cited to propose that contributions from d orbitals in the shell below thevalenceshellare responsible. From Wikipedia ![]() The "s" -sub-shell in thevalenceshellis represented as the "ns" sub-shell. From Wikipedia ![]() To obviate this difficulty, the space of possible single-particle states is divided into a core and avalenceshell, by analogy with chemistry. From Wikipedia ![]() But in thevalenceshellof silver atoms, there is a single electron whose spin remains unbalanced. From Wikipedia ![]() A carbon atom has four electrons in its outermostvalenceshell. From Wikipedia ![]() However, this ion is unstable, because it has an incompletevalenceshellaround the nitrogen atom, making it a very reactive radical ion. From Wikipedia ![]() Period 1 elements obey the duet rule in that they need two electrons to complete theirvalenceshell. From Wikipedia ![]() Or the electron can even break free from its associated atom'svalenceshell; this is ionization to form a positive ion. From Wikipedia ![]() This is because in a transition series, thevalenceshellelectronic configuration of the elements do not change. From Wikipedia ![]() Period 2 elements obey the octet rule in that they need eight electrons to complete theirvalenceshell. From Wikipedia ![]() The outermost electron shell is often referred to as thevalenceshelland (to a first approximation) determines the chemical properties. From Wikipedia ![]() In metallic bondsvalenceshellelectrons are delocalized and shared between many atoms. From Wikipedia ![]() 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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