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YouTubePeriodic Videos
Helium - Periodic Table of Videos
Here's a new video about Helium. More links and info in full description ↓↓↓ All 118 elements: http://bit.ly/118elements Support us on Patreon: https://www.patreon.com/periodicvideos Archive footage courtesy of AP Archive: https://www.youtube.com/c/aparchive More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http ...
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