Periodic Videos
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NEW VIDEO - Rare and Radioactive Elements
🕑 Added 2019-04-11 11:21:54 +0000 UTCLost of stuff you've probably never seen before.
Plutonium
Uranium
Neptunium
Americium
Protactinium
Actinium
Technetium
Berkelium
Holmium
Californium
Curium
Polonium (sort of)