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  • A [[chemical compound]] (NH<sub>3</sub>) of [[nitrogen]] and [[hydrogen]], occurring as a [[gas]] with a characteristic [[odour]]
    196 bytes (24 words) - 09:18, 18 March 2010
  • ...nary ammonium cation consisting of four ethyl groups attached to a central nitrogen atom, which acts as a potassium-selective ion channel blocker.
    189 bytes (25 words) - 10:30, 6 September 2009
  • === Nitrogen metabolism === {{r|Nitrogen cycle}}:
    2 KB (258 words) - 22:05, 25 September 2008
  • '''Ammonia''' is a [[chemical compound]] (NH<sub>3</sub>) of [[nitrogen]] and [[hydrogen]], occurring as a [[gas]] with a characteristic [[odour]]
    190 bytes (24 words) - 02:00, 13 January 2024
  • ...-lived [[positron]]-emitting [[isotope|radionuclides]] (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism.<noinclude>{{DefM
    279 bytes (30 words) - 02:19, 15 May 2010
  • An [[antineoplastic agent]], of the [[nitrogen mustard]] family of [[alkylating agent]]s, used as a second-line agent agai
    204 bytes (27 words) - 15:37, 5 February 2009
  • |elName=Nitrogen '''Nitrogen''' is a [[Chemical elements|chemical element]], typically found as a [[gas]
    3 KB (539 words) - 18:53, 5 January 2021
  • <includeonly>Non-Metal</includeonly><noinclude>Nitrogen is a [[Non-Metal]].</noinclude>
    87 bytes (9 words) - 05:50, 6 March 2024
  • ...ylating agent]]s derived from [[mustard gas]], with the sulfur replaced by nitrogen, originally [[chemical weapon]]s but now used as highly toxic [[antineopla
    251 bytes (34 words) - 15:48, 5 February 2009
  • ...hylamine]], CH<sub>3</sub>NH<sub>2</sub>, is the smallest amine. When the nitrogen atom is bonded to one, two, three or four carbon atoms, the chemical is cal
    1 KB (198 words) - 22:22, 2 December 2008
  • ...ivatives. There are also ionic amides, which are very strong bases and the nitrogen equivalents of [[hydroxide]], with the general formula R<sub>2</sub>N<sup>- ...the nitrogen. It also lends partial double bond character to the carbonyl-nitrogen bond, limiting rotation around it. These reactivity patterns are true of am
    3 KB (410 words) - 02:51, 17 October 2013
  • ...rrel Medic''' and used as an annual forage legume. It forms symbioses with nitrogen-fixing rhizobia and mycorrhizal fungi.
    218 bytes (30 words) - 08:51, 22 September 2008
  • A complex process in which the element [[nitrogen]] moves into the air, back down into the soil, is changed chemically by var
    261 bytes (41 words) - 12:23, 27 March 2010
  • ...ent parts of the infrared band; operated as a thermoelectrically or liquid nitrogen cooled device
    260 bytes (36 words) - 23:57, 12 March 2011
  • ...of [[organic chemistry]] &mdash; from the [[chemical element|elements]] [[nitrogen]] and [[hydrogen]].
    258 bytes (31 words) - 08:37, 4 March 2010
  • ...ide]]s and [[mercury]]. Typically, more than two-thirds of the flue gas is nitrogen. ...a or urea. In either case, the aim is to produce nitrogen gas, rather than nitrogen oxides.
    2 KB (391 words) - 15:45, 8 November 2011
  • An example is the reaction of [[nitrogen monoxide]] with [[ozone]] giving [[nitrogen dioxide]] (NO<sub>2</sub>) (in an excited state) and dioxygen (O<sub>2</sub ...ctronic with vibrational motions) the electromagnetic radiation emitted by nitrogen dioxide has a range of wavelengths; however, the emission is centered aroun
    2 KB (240 words) - 10:54, 7 May 2010
  • ...r [[Hodgkin's disease]] and [[non-Hodgkin's lymphoma]], of the family of [[nitrogen mustards]] in the class of [[alkylating agents]].
    217 bytes (26 words) - 15:59, 5 February 2009
  • ...emical bond]] involving a [[hydrogen]] [[atom]] and either [[Fluorine]], [[Nitrogen]], or [[Oxygen]].
    203 bytes (25 words) - 23:44, 16 July 2008
  • ...ctive [[oxidizer]] of colorless dinitrogen tetraoxide (N2O4) and red-brown nitrogen dioxide (NO2) in a temperature-dependent equilibrium; used as a [[hypergoli
    340 bytes (46 words) - 19:22, 21 April 2010
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