Plutonium, the Most Dangerous Man Made Element
Are there Undiscovered Elements Beyond The Periodic Table?
This New Element is Lighter than Hydrogen. What?!?!
What If You Build the Periodic Table in Real Life? (Dangerous Experiment)
Synthetic element Explained {Science Thursday Ep124}
The Rarest Element on Earth
Technetium - The First SYNTHETIC Metal on EARTH!
How deadly is cyanide?
Will We Ever Finish the Periodic Table?
Diamond is NOT the hardest substance... this is!
Technetium - Periodic Table of Videos
Where does the periodic table end?
But seriously, don't drop Sodium in gasoline
Is Technetium a Naturally Occurring Element?
Scientists Just Discovered New Elements Beyond The Periodic Table That Change Everything
Most Dangerous Chemical - Viewer Questions
Diamonds are not forever
If We Could Create New Chemical Elements On Demand
What Is Element 115 and Is The Government Hiding It From Us? | Unveiled
20 Most Dangerous Minerals in The World