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noble gas
an element that is a gas at room temperature and does not react with other elements under normal circumstances (inert)
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  October 31 in chemistry
  1828 - Joseph Wilson Swan born: carbon process for printing photographs; carbon-filament light bulb.
  1832 - Walter Weldon born: industrial chemistry.
  1835 - Adolf von Baeyer born: organic dyes (indigo and triphenylmethyl dyes), introduced concept of ring strain (still a useful concept); Nobel Prize, 1905.
  1841 - Josef Habermann born: protein analysis.
  1923 - Richard B. Bernstein born: reaction dynamics using molecular beams.
  1925 - John A. Pople born: computational quantum chemistry; Nobel Prize, 1998.
   sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com

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