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nitrogenmore about nitrogen


  3  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Nitrogen  \Ni`tro*gen\,  n.  [L.  nitrum  natron  +  -gen:  cf  F. 
  nitrog[`e]ne.  See  {Niter}.]  (Chem.) 
  A  colorless  nonmetallic  element,  tasteless  and  odorless, 
  comprising  four  fifths  of  the  atmosphere  by  volume.  It  is 
  chemically  very  inert  in  the  free  state,  and  as  such  is 
  incapable  of  supporting  life  (hence  the  name  {azote}  still 
  used  by  French  chemists);  but  it  forms  many  important 
  compounds,  as  ammonia,  nitric  acid,  the  cyanides,  etc  and  is 
  a  constituent  of  all  organized  living  tissues,  animal  or 
  vegetable.  Symbol  N.  Atomic  weight  14.  It  was  formerly 
  regarded  as  a  permanent  noncondensible  gas,  but  was  liquefied 
  in  1877  by  Cailletet  of  Paris,  and  Pictet  of  Geneva. 
  From  WordNet  r  1.6  [wn]: 
  n  :  a  common  nonmetallic  element  that  is  normally  a  colorless 
  odorless  tasteless  inert  diatomic  gas;  constitutes  78 
  percent  of  the  atmosphere  by  volume;  a  constituent  of  all 
  living  tissues  [syn:  {N},  {atomic  number  7}] 
  From  Elements  database  20001107  [elements]: 
  Symbol:  N 
  Atomic  number:  7 
  Atomic  weight:  14.0067 
  Colourless,  gaseous  element  which  belongs  to  group  15  of  the  periodic 
  table.  Constitutes  ~78%  of  the  atmosphere  and  is  an  essential  part  of  the 
  ecosystem.  Nitrogen  for  industrial  purposes  is  acquired  by  the  fractional 
  distillation  of  liquid  air.  Chemically  inactive,  reactive  generally  only 
  at  high  temperatures  or  in  electrical  discharges.  It  was  discovered  in 
  1772  by  D.  Rutherford. 

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