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Potassium - 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 potassium -- an "evil" element, but one that's crucial to life. In this video, see some violent explosions and the gentle creation of a potassium mirror.

As we can see in Steve’s experiment with the potassium mirror, this alkaline metal is…

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