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Periodic Videos: Season 2011

2011x30 Difficult Elements - Periodic Table of Videos

  • 2011-05-25T04:00:00Z on YouTube
  • 7m
  • United States
  • Documentary
Which elements are hardest to collect and display... Element collector Max Whitby tell us the ones he finds toughest. More videos at http://www.periodicvideos.com/ We're on Facebook at http://www.facebook.com/periodicvideos
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