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| − | The traditional picture of the '''metallic bond''' was developed soon after the discovery of the electron. In this picture the valence [[electron]]s were viewed as an electron-gas permeating the [[crystal lattice]] structre of the metal atoms. The cohesive forces holding the metal together could be qualitatively seen as resulting from the [[electrostatic]] interaction of the positively charged metal atom cores with the negatively charged electron-gas.
| + | #REDIRECT [[Chemical_bond#Metallic_Bond]] |
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| − | With the development of [[quantum mechanics]] this picture has changed significantly. Quantum mechanically [[Covalent bond|covalent bonding]] can be described by constructing molecular orbitals from a linear combination of atomic orbitals ([[LCAO theory]]). For some molecules, such as benzene, which contain [[resonance]] in an extended [[conjugation|conjugated]] system some of the molecular orbitals
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| − | {{Natural sciences-footer}}
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| − | [[Category:Physical sciences]]
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| − | [[Category:Chemistry]]
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