Periodic Videos | 3: Element Pins (12 Days of Christmas) @periodicvideos | Uploaded 8 years ago | Updated 11 minutes ago
Special element pins from Moscow State University.
Third of 12 parts, each featuring chemistry gifts received by Sir Martyn during the year.
All the videos in this series appear here as they're released: http://bit.ly/12_Days_Xmas

Element 25 is indeed Manganese... Sorry, long day.

Objectivity: http://bit.ly/Objectivity

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