Bismuth - 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. Bismuth was thought to be the heaviest element on the periodic table that is not radioactive... but is that still the case?
The pearl effect in some lipsticks and nail varnishes is produced by bismuth oxychloride (BiOCl), a lustrous crystalline powder.
Do you know of these radioactive elements on the periodic table? Which is the first element you think of when you hear the word "radioactive?"