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ring nitrogen

См. также в других словарях:

  • Nitrogen laser — A 337nm wavelength and 170 µJ pulse energy 20 Hz cartridge nitrogen laser A nitrogen laser is a gas laser operating in the ultraviolet range[1] (typically 337.1 nm) using molecular nitrogen as its gain medium, pumped by an electrical… …   Wikipedia

  • Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …   Wikipedia

  • nitrogen — /nuy treuh jeuhn/, n. Chem. a colorless, odorless, gaseous element that constitutes about four fifths of the volume of the atmosphere and is present in combined form in animal and vegetable tissues, esp. in proteins: used chiefly in the… …   Universalium

  • Ring Nebula — For the Ring Nebula in Barnard s Galaxy, see Ring Nebula (NGC 6822). The Ring Nebula M57, The Ring Nebula. Credit: NASA/STScI/AURA …   Wikipedia

  • Nitrogen — Eigenschaften …   Deutsch Wikipedia

  • nitrogen — noun /ˈnaɪtɹədʒən/ a) A chemical element (symbol N) with an atomic number of 7 and atomic weight of 14.0067. The two nitrogens are located next to one another on the ring. b) Molecular nitrogen (N), a colorless, odorless gas at room temperature.… …   Wiktionary

  • Basic aromatic ring — Basic aromatic rings are aromatic rings in which the lone pair of electrons of a ring nitrogen atom is not part of the aromatic system and extends in the plane of the ring. This lone pair is responsible for the basicity of these nitrogenous bases …   Wikipedia

  • Fairy ring — For the article dedicated to the Southwest African phenomenon of fairy circles, see Fairy circle (Africa). For the Neolithic archaeological monument, see Hjaltadans. A fairy ring on a suburban lawn A fairy ring, also known as fairy circle, elf… …   Wikipedia

  • Simple aromatic ring — Simple aromatic rings, also known as simple arenes or simple aromatics, are aromatic organic compounds that consist only of a conjugated planar ring system with delocalized pi electron clouds. Many simple aromatic rings have trivial names. They… …   Wikipedia

  • O-ring — This article is about the mechanical seal. For other uses, see Oring. Typical O ring and application An O ring, also known as a packing, or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a disc… …   Wikipedia

  • heterocyclic compound — Any of a class of organic compounds whose molecules contain one or more rings of atoms with at least one atom (the heteroatom) being an element other than carbon, most frequently oxygen, nitrogen, or sulfur. As in regular cyclic hydrocarbons,… …   Universalium

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