The potential energy surface in the active site was generated using the approximate valence bond method. |
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In general, manganese ions are found in different valence states from divalent to septavalent. |
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It is the valence of the lipid, not the membrane-bound peptide, that is the more important factor for lateral electrostatic sequestration. |
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To obtain filled valence shells on the atoms of nitrogen molecules, it is necessary to share three pairs of electrons, forming a triple bond. |
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An electrolyte's ionic strength is half of the total obtained by multiplying the molality of each ion by its valence squared. |
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A carbon atom with two single bonds and one double bond carries a valence of four. |
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The difference in the valence of phosphorous and silicon provides the free electrons needed for metal-like behaviour. |
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Addition reactions of inorganic molecules occur when an atom has more than one valence. |
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These superconductors usually contain more oxygen atoms than predicted by valence theory. |
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An efficient algorithm for Ewald summation calculations for the multistate empirical valence bond model is also introduced. |
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Atoms of these elements have six valence electrons and tend to gain or acquire electrons in chemical reactions. |
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The term valence can also refer to the charge or oxidation number on an atom. |
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Similar patterns are seen in small atomic systems, such as the closed shells of valence electrons in metal clusters. |
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Insulators may be thought of as semiconductors with very large gaps between the valence and conduction bands. |
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The polymer moieties have a valence orbital bond to the carbonaceous particulate, such as an ionic or covalent bond. |
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Colors of light are related to the effects exerted on the valence electron of an excited atom. |
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Also considered are interatomic forces and valence, the theory of solids, collision problems, radiation theory and relativistic quantum theory. |
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As the number of valence electrons increases, the metallic bond develops some covalent character that contributes to higher melting points. |
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Excitons are created in semiconductors when a laser field promotes an electron from the valence band to the conduction band. |
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Family 2 on the periodic table is the alkaline earth metals with two valence electrons. |
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Nonmetals with eight valence electrons are chemically unreactive. |
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The valence of a unit is closely tied up with its dependence. |
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These data can only be explained if one assumes that the affective valence of the prime is processed, even though this is not necessary for the task at hand. |
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In covalent compounds the valence of an atom may be less obvious. |
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The metalloids have an intermediate number of valence electrons. |
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The electrons in the highest energy level are called valence electrons. |
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The semantic valence attributed to a hieroglyphic language is two-edged. |
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A hydronic valence convector system provides radiant cooling and heating of the offices using significantly less energy than fan coil units would. |
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Cesium and rubidium lose their valence electrons especially easily when light strikes their polished surfaces and are photosensitive over the full visible spectrum. |
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So soldierly motivation has had a different valence, more missionary than knight. |
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The laser light lifts electrons from the valence band into the conduction band, where they travel freely when a voltage is applied to the semiconductor. |
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Graphite behaves like a two-dimensional metal because there is a transition point between its valence band and conductance band known as the Fermi point. |
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The second ionization potential is the energy needed to completely remove an electron from the valence shell of the ion that results from the first ionization. |
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It is argued that the terms valence, covalence, hypervalence, oxidation state, and coordination number are often confused and misused in the literature. |
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The lower part of the rear body has been subtly widened to disguise the track increase and four low restriction exhaust outlets are visible below the rear valence. |
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If this activity was completed after some background lecture on bonding and valence electrons, less reading would be necessary. |
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The soft x-ray emissions result from radiative transitions involving valence electrons. |
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These values correspond to the amounts of energy required to remove bonding electrons from an atom's valence electron shells. |
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There are also constructions in some languages that appear to change the valence of a verb, but in fact do not. |
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Or, perhaps, for chemistry buffs willing to take their valence electrons with a touch of whimsy. |
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These valence electrons are free to move, so are able to conduct electricity. |
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Finally, robots, more so than other technology in our lives, have a social valence. They feel different to us, more like living agents. |
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The elements with filled valence shells are also emphasized and their lack of chemical reactivity is pointed out. |
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In photocatalysis, light energy from a UV-A light source excites an electron from the valence band of the catalyst to the conduction band. |
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Multiplicities of the energy states of the polyfold spectral terms depend on the valence electrons of the atoms. |
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They have the same number of valence electrons, the same atomic structure and have nearly identical atomic size. |
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This is especially important in alkali metals where the one valence electron is particularly sensitive to any core changes. |
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In organosulfur compounds of type SR4 and SR6, analogous to the well-known fluorosulfur compounds SF4 and SF6, the valence of sulfur has been expanded beyond the normal octet to a dectet or dodecet, respectively. |
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But there doesn't seem to be much ideological valence to that problem. |
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The section on charge distributions looks at such topics as core and valence electrons, the valence region of molecules, and charges and ionization potentials. |
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Each group of lines may be accounted for by transitions of the valence electron between a polyfold level of one type and another polyfold level of the same or different type. |
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Elemental halogens have seven valence electrons and are very reactive. |
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Every technetium atom makes six bonds, and the remaining valence electrons can be saturated by one axial and two bridging ligand halogen atoms such as chlorine or bromine. |
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