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- Electron_pair abstract "In chemistry, an electron pair or a Lewis pair consists of two electrons that occupy the same orbital but have opposite spins. The electron pair concept was introduced in a 1916 paper of Gilbert N. Lewis.Because electrons are fermions, the Pauli exclusion principle forbids these particles from having exactly the same quantum numbers. Therefore the only way to occupy the same orbital, i.e. have the same orbital quantum numbers, is to differ in the spin quantum number. This limits the number of electrons in the same orbital to exactly two. The pairing of spins is often energetically favorable and electron pairs therefore play a very large role in chemistry. They can form a chemical bond between two atoms as a lone pair. fill the core levels of an atom.Because the spins are paired, the magnetic moment of the electrons cancels and the contribution of the pair to the magnetic properties will in general be a diamagnetic one.Although a strong tendency to pair off electrons can be observed in chemistry, it is also possible that electrons occur as unpaired electrons.In the case of metallic bonding the magnetic moments also compensate to a large extent, but the bonding is more communal so that individual pairs of electrons cannot be distinguished and it is better to consider the electrons as a collective 'ocean'.A very special case of electron pair formation occurs in superconductivity: the formation of Cooper pairs.".
- Electron_pair thumbnail Covalent&PolarBond.png?width=300.
- Electron_pair wikiPageID "7376733".
- Electron_pair wikiPageRevisionID "601343894".
- Electron_pair hasPhotoCollection Electron_pair.
- Electron_pair subject Category:Chemical_bonding.
- Electron_pair subject Category:Molecular_physics.
- Electron_pair subject Category:Quantum_chemistry.
- Electron_pair comment "In chemistry, an electron pair or a Lewis pair consists of two electrons that occupy the same orbital but have opposite spins. The electron pair concept was introduced in a 1916 paper of Gilbert N. Lewis.Because electrons are fermions, the Pauli exclusion principle forbids these particles from having exactly the same quantum numbers. Therefore the only way to occupy the same orbital, i.e. have the same orbital quantum numbers, is to differ in the spin quantum number.".
- Electron_pair label "Doppietto elettronico".
- Electron_pair label "Electron pair".
- Electron_pair label "Elektronenpaar".
- Electron_pair label "Elektronenpaar".
- Electron_pair label "Par de electrones".
- Electron_pair label "Par de elétrons".
- Electron_pair label "Para elektronowa".
- Electron_pair label "زوج إلكترون".
- Electron_pair label "電子對".
- Electron_pair sameAs Elektronenpaar.
- Electron_pair sameAs Ηλεκτρονιακό_ζεύγος.
- Electron_pair sameAs Par_de_electrones.
- Electron_pair sameAs Doppietto_elettronico.
- Electron_pair sameAs Elektronenpaar.
- Electron_pair sameAs Para_elektronowa.
- Electron_pair sameAs Par_de_elétrons.
- Electron_pair sameAs m.04ggdw9.
- Electron_pair sameAs Q900190.
- Electron_pair sameAs Q900190.
- Electron_pair wasDerivedFrom Electron_pair?oldid=601343894.
- Electron_pair depiction Covalent&PolarBond.png.
- Electron_pair isPrimaryTopicOf Electron_pair.
