electron pair

electron pair
Two electrons having opposite spin but all other quantum numbers the same; i.e two electrons in the same atomic orbital or molecular orbital, especially such electrons that function in concert to form a covalent bond

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  • Electron pair — In chemistry, an electron pair consists of two electrons that occupy the same orbital but have opposite spins.Because electrons are fermions, the Pauli exclusion principle forbids these particles from having exactly the same quantum numbers.… …   Wikipedia

  • electron pair — elektronų pora statusas T sritis fizika atitikmenys: angl. electron pair vok. Elektronenpaar, n rus. пара электронов, f pranc. paire d’électrons, f …   Fizikos terminų žodynas

  • electron pair — noun 1》 Chemistry two electrons occupying the same orbital in an atom or molecule. 2》 Physics an electron and a positron produced in a high energy reaction …   English new terms dictionary

  • electron pair — /əˌlɛktrɒn ˈpɜə/ (say uh.lektron peruh) noun two electrons occupying the same region in space in relation to one nucleus or more and spinning in opposite directions …  

  • electron pair — noun : a group of two electrons belonging to one atom or shared by two atoms as a chemical bond …   Useful english dictionary

  • Polyhedral skeletal electron pair theory — In chemistry the polyhedral skeletal electron pair theory provides electron counting rules useful for predicting the structures of clusters such as borane and carborane clusters. The electron counting rules were originally formulated by Kenneth… …   Wikipedia

  • Cooper electron pair — A Cooper (electron) pair is a quasi bound state of a pair of two electrons in a superconducting material. The composite entity behaves as a particle, with zero spin and charge twice that of an electron. Cooper pairs carry the current in a… …   Wikipedia

  • hole-electron pair — elektrono ir skylės pora statusas T sritis automatika atitikmenys: angl. electron hole pair; hole electron pair vok. Elektronen Defektelektronen Paar, n; Elektron Loch Paar, n; Loch Elektron Paar, n rus. электронно дырочная пара, f pranc. paire… …   Automatikos terminų žodynas

  • Electron counting — is a formalism used for classifying compounds and for explaining or predicting electronic structure and bonding. Many rules in chemistry rely on electron counting:*Octet rule for main group elements, especially the lighter ones such as carbon,… …   Wikipedia

  • Valence Shell Electron Pair Repulsion — Va|lence Shẹll E|lec|t|ron Pair Re|pul|si|on [ veɪləns ʃel ɪ lektrɒn peə rɪ pʌlʃn]: ↑ VSEPR Modell …   Universal-Lexikon

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