symmetry of molecules
71morphology — morphologic /mawr feuh loj ik/, morphological, adj. morphologically, adv. morphologist, n. /mawr fol euh jee/, n. 1. the branch of biology dealing with the form and structure of organisms. 2. the form and structure of an organism considered as a… …
72virus — viruslike, adj. /vuy reuhs/, n., pl. viruses. 1. an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA …
73Metal ions in aqueous solution — A metal ion in aqueous solution is a cation, dissolved in water, of chemical formula [M(H2O)n]z+. The solvation number, n, determined by a variety of experimental methods is 4 for Li+ and Be2+ and 6 for elements in rows 3 and 4 of the periodic… …
74Matter — This article is about the concept in the physical sciences. For other uses, see Matter (disambiguation). Matter is a general term for the substance of which all physical objects consist.[1][2] Typically, matter includes atoms and other particles… …
75nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …
76reaction mechanism — Introduction in chemical reactions (chemical reaction), the detailed processes by which chemical substances are transformed into other substances. The reactions themselves may involve the interactions of atoms (atom), molecules (molecule),… …
77Raman scattering — or the Raman effect (pronounced: IPA| [rə.mən] ) is the inelastic scattering of a photon. Discovered By Dr. C.V. Raman in liquids and by Grigory Landsberg and Leonid Mandelstam in crystals.When light is scattered from an atom or molecule, most… …
78Miller index — Planes with different Miller indices in cubic crystals …
79isomerism — /uy som euh riz euhm/, n. 1. Chem. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism), as CH3OCH3 and… …
80Nobel Prize winners by category (chemistry) — ▪ Table Nobel Prize winners by category (chemistry) year name country* achievement 1901 Hoff, Jacobus Henricus van t The Netherlands laws of chemical dynamics and osmotic pressure 1902 Fischer, Emil Germany work on sugar and purine syntheses 1903 …
