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Qu'est-ce (qui) est valence electron - définition
Valence electron
![valence]] of four. Each hydrogen atom has one valence electron and is univalent.](https://commons.wikimedia.org/wiki/Special:FilePath/Covalent.svg?width=200 "valence]] of four. Each hydrogen atom has one valence electron and is univalent.")
OUTER SHELL ELECTRON THAT IS ASSOCIATED WITH AN ATOM, AND THAT CAN PARTICIPATE IN THE FORMATION OF A CHEMICAL BOND IF THE OUTER SHELL IS NOT CLOSED
Valance shells; Valence shell; Valence electrons; Valence Electrons; Valence energy level; Valance electron; Valence orbital
In chemistry and physics, a valence electron is an electron in the outer shell associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed. In a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.
Inner sphere electron transfer
MECHANISM OF ELECTRON TRANSFER IN INORGANIC CHEMISTRY
Inner-sphere electron transfer; Mixed-valence
Inner sphere electron transfer (IS ET) or bonded electron transfer is a redox chemical reaction that proceeds via a covalent linkage—a strong electronic interaction—between the oxidant and the reductant reactants. In inner sphere electron transfer, a ligand bridges the two metal redox centers during the electron transfer event.
N-electron valence state perturbation theory
In quantum chemistry, n-electron valence state perturbation theory (NEVPT) is a perturbative treatment applicable to multireference CASCI-type wavefunctions. It can be considered as a generalization of the well-known second-order Møller–Plesset perturbation theory to multireference Complete Active Space cases.
