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Diagrams for the bonding between atoms of a molecule and lone pairs of electrons
Lewis structure of a water molecule
Lewis structures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.[1][2][3] A Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. The Lewis structure was named after Gilbert N. Lewis, who introduced it in his 1916 article The Atom and the Molecule.[4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.
Lewis structures show each atom and its position in the structure of the molecule using its chemical symbol. Lines are drawn between atoms that are bonded to one another (pairs of dots can be used instead of lines). Excess electrons that form lone pairs are represented as pairs of dots, and are placed next to the atoms.
Although main group elements of the second period and beyond usually react by gaining, losing, or sharing electrons until they have achieved a valence shell electron configuration with a full octet of (8) electrons, hydrogen (H) can only form bonds which share just two electrons.
^IUPAC definition of Lewis formula
^Zumdahl, S. (2005) Chemical Principles Houghton-Mifflin (ISBN 0-618-37206-7)
Lewisstructures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams...
be represented by a variety of diagrams called structural formulas. Lewisstructures use a dot notation to represent the valence electrons for an atom;...
multiple types of ways to draw these structural formulas such as: LewisStructures, condensed formulas, skeletal formulas, Newman projections, Cyclohexane...
ideally close to 2.000, providing the most accurate possible “natural Lewisstructure” of ψ. A high percentage of electron density (denoted %-ρL), often...
by the Lewisstructure of molecules and their valence electrons. Hence they are sometimes termed Kekulé structures or Lewis–Kekulé structures. Skeletal...
unit of radiant energy). He introduced the Lewis notation or electron dot notation or Lewis dot structure, in which valence electrons (those in the outer...
paramagnetic; i.e., it can be attracted to the poles of a magnet. Thus, the Lewisstructure O=O with all electrons in pairs does not accurately represent the nature...
that atom in a Lewisstructure. When determining the best Lewisstructure (or predominant resonance structure) for a molecule, the structure is chosen such...
electrons between atoms, and was thus a model of ionic bonding. Both Lewis and Kossel structured their bonding models on that of Abegg's rule (1904). Although...
its Lewisstructure. when the isolated tandem of a heteronuclear and a homonuclear bond leads to a bonding compromise in between two Lewisstructures of...
several traditional and advanced bonding models such as simple Lewis and VSEPR structure, valence bond theory, molecular orbital theory, isovalent hybridization...
the Lewisstructure with a double bond, but adds a question mark with the explanation that there is some doubt about the validity of this structure because...
outermost electron shell of atoms. They can be identified by using a Lewisstructure. Electron pairs are therefore considered lone pairs if two electrons...
Lewis (1861), a sailing ship USS Lewis (DE-535), a destroyer escort in commission from 1944 to 1946 Lewisstructure, a diagram of a molecule that shows...
forms are merely alternative Lewisstructure (valence bond theory) depictions of a single chemical species, whose true structure is a quantum superposition...
A Lewis acid (named for the American physical chemist Gilbert N. Lewis) is a chemical species that contains an empty orbital which is capable of accepting...
Commons has media related to Molecular geometry. Jemmis mno rules Lewisstructure Molecular design software Molecular graphics Molecular mechanics Molecular...
heuristic for rationalizing the structures of organic compounds. It gives a simple orbital picture equivalent to Lewisstructures. Hybridisation theory is an...
optimal Lewisstructure rather than the one with two double bonds (thus the Lewis model, not the Pauling model). In this model, the structure obeys the...
article by Lewis also introduced the concept of the electron pair in the covalent bond, the octet rule, and the now-called Lewisstructure. Single covalent...
conjugated system of bonds in its Lewisstructure This disambiguation page lists articles associated with the title Lewis conjugate. If an internal link...
Foot-candle (symbol fc or ft-c), a unit of illumination Formal charge, a Lewisstructure concept in chemistry Fragment crystallizable region, a region of an...
Lewis' only his model assumed complete transfers of electrons between atoms, and was thus a model of ionic bonding. Both Lewis and Kossel structured their...
008. PMID 21111607. Alberts B, Johnson A, Lewis J, Raff M, Roberts K, Walters P (2002). "The Shape and Structure of Proteins". Molecular Biology of the Cell...
equivalent conjugated contributing Lewisstructures (the so-called Kekulé structures) that predominate. The true electronic structure is therefore a quantum-mechanical...
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