Medical dictionary. 2011.
Van der Waals force — In physical chemistry, the van der Waals force (or van der Waals interaction), named after Dutch scientist Johannes Diderik van der Waals, is the sum of the attractive or repulsive forces between molecules (or between parts of the same molecule)… … Wikipedia
Van der Waals radius — The van der Waals radius, r sub|w, of an atom is the radius of an imaginary hard sphere which can be used to model the atom for many purposes. It is named after Johannes Diderik van der Waals, winner of the 1910 Nobel Prize in Physics, as he was… … Wikipedia
Rayon de van der Waals — Rayons de van der Waals de certains éléments Élément Rayon (Å) Hydrogène 1,20 Carbone 1,70 Azote 1,55 Oxygène 1,52 Fluor 1,47 Phosphore … Wikipédia en Français
Hydrogen bond — A hydrogen bond results from a dipole dipole force between an electronegative atom and a hydrogen atom bonded to nitrogen, oxygen or fluorine (thus the name hydrogen bond , which must not be confused with a covalent bond to hydrogen). The energy… … Wikipedia
Universiteit van Amsterdam — Vorlage:Infobox Hochschule/Träger fehltVorlage:Infobox Hochschule/Professoren fehlt Universität von Amsterdam Gründung 1815 … Deutsch Wikipedia
Chemical bond — A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electromagnetic force attraction between opposite charges, either between electrons and… … Wikipedia
Covalent bond — Covalent redirects here. For other uses, see Covalent (disambiguation). A covalent bond forming H2 (right) where two h … Wikipedia
Metallic bond — Metallic bonding is the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an electron sea , and the positively charged metal ions. Understood as the sharing of free electrons among a… … Wikipedia
Delta bond — Formation of a delta bond by the overlap of two d orbitals … Wikipedia
Dihydrogen bond — In chemistry, a dihydrogen bond is a kind of hydrogen bond, an interaction between a metal hydride bond and an OH or NH group or another proton donor. The first example of this phenomenon is credited to Brown and Heseltine.[1] They observed… … Wikipedia
