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halogens

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halogens


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Chlorine  \Chlo"rine\,  n.  [Gr.  ?  pale  green,  greenish  yellow.  So 
  named  from  its  color.  See  {Yellow}.]  (Chem.) 
  One  of  the  elementary  substances,  commonly  isolated  as  a 
  greenish  yellow  gas,  two  and  one  half  times  as  heavy  as  air, 
  of  an  intensely  disagreeable  suffocating  odor,  and 
  exceedingly  poisonous.  It  is  abundant  in  nature,  the  most 
  important  compound  being  common  salt.  It  is  powerful 
  oxidizing,  bleaching,  and  disinfecting  agent.  Symbol  Cl 
  Atomic  weight,  35.4. 
 
  {Chlorine  family},  the  elements  fluorine,  chlorine,  bromine, 
  and  iodine,  called  the  {halogens},  and  classed  together 
  from  their  common  peculiarities. 




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