Technetium - Periodic Table of Videos
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The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about technetium. It is the first naturally radioactive element on the periodic table.
Technetium comes from the Greek "technetos", which means artificial, because it was the first non-naturally occurring element to be synthesized.
The element was named after the Greek word “teknetos” meaning artificial. What would be your favourite name to call a synthetic element?