delocalization
11Metallic 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… …
12Nutritional economics — is a synthetic concept that deals with the interplay between economic systems, nutritional status and food security, and how changes in the former affect the latter. If economic and environmental changes in a community affect access to food, food …
13Nutritional Economics — is a synthetic concept that deals with the interplay between economic systems, nutritional status and food security, and how changes in the former affect the latter. If economic and environmental changes in a community affect access to food, food …
14chemical bonding — ▪ chemistry Introduction any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …
15Aromaticity — is a chemical property in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals exhibit a stabilization stronger than would be expected by the stabilization of conjugation alone. It can also be considered a manifestation of… …
16Benzene — For other uses, see Benzene (disambiguation). See also: Benzole Benzene …
17benzene — /ben zeen, ben zeen /, n. Chem. a colorless, volatile, flammable, toxic, slightly water soluble, liquid, aromatic compound, C6H6, obtained chiefly from coal tar: used in the manufacture of commercial and medicinal chemicals, dyes, and as a… …
18Chemical 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… …
19Skeletal formula — The skeletal formula of an organic compound is a shorthand representation of its molecular structure. Skeletal formulae are in organic chemistry because they show complicated structures clearly and they are quick and simple to draw. Carbon… …
20Polythiophene — The monomer repeat unit of unsubstituted polythiophene …
