Nitrogen
11nitrogen — ► NOUN ▪ a colourless, odourless, relatively unreactive gaseous chemical element, forming about 78 per cent of the earth s atmosphere. DERIVATIVES nitrogenous adjective …
12nitrogen — [nī′trə jən] n. [Fr nitrogène: so named (1790) by J. A. Chaptal (1756 1832), Fr chemist < Gr nitron (see NITER) + Fr gène, GEN, because niter resulted when it was sparked with oxygen in the presence of caustic potash] a colorless, tasteless,… …
13Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …
14nitrogen — /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… …
15Nitrogen-14 — Infobox isotope alternate names = symbol =N mass number =14 mass = num neutrons =7 num protons =7 abundance = 99.634% halflife = error halflife = googlearfglakdfjg text color = decay product = decay symbol = decay mass = decay mode1 = decay… …
16Nitrogen-15 — Infobox isotope alternate names = symbol =N mass number =15 mass = num neutrons =8 num protons =7 abundance = 0.37% halflife = error halflife = googlearfglakdfjg text color = decay product = decay symbol = decay mass = decay mode1 = decay energy1 …
17nitrogen — n. Chem. a colourless tasteless odourless gaseous element that forms four fifths of the atmosphere and is an essential constituent of proteins and nucleic acids. Usage: Symb.: N. Phrases and idioms: nitrogen cycle the interconversion of nitrogen… …
18nitrogen-13 — noun A radioactive isotope of nitrogen, , having seven protons and six neutrons, and a half life of less than ten minutes; it is used in positron emission tomography See Also: nitrogen 14, nitrogen 15 …
19nitrogen-14 — noun The major stable isotope of nitrogen, , having seven protons and seven neutrons; it accounts for well over 99% of the natural element. See Also: nitrogen 13, nitrogen 15 …
20nitrogen-15 — noun A minor stable isotope of nitrogen, , having seven protons and eight neutrons; it accounts for less than 0.4% of the natural element; it is used in nuclear magnetic resonance spectroscopy See Also: nitrogen 13, nitrogen 14 …
