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'''Electron cloud''' is a term used for introducing the concept of ] in low-level pedagogical introductions to ], ], ] or ]. This idea corresponds to delocated ]s moving or standing like clouds around the ] or ] ]. This is indeed a better image than the very common image provided by the ] which commonly leads to a visualisation of electrons driving around the nuclei along ]s like the ]s around the ]. |
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This representation is related to the idea that the ]s are not precisely located around the ] or ] ] but must instead be described by ]s or ]s which provides the ] to find electrons in a given region of space (for example along a particular ]). These mathematical ]s of the ]s of all electrons are often expressed in terms of ]s or ]s which are in turn expressed in terms of ] or ]s. One can represent the theory also in terms of the ] which is a function of one electron only. This approach is called the ]. Both the molecular orbital and density functional approaches are the basic elements of modern ] and of ]. |
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