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Arsenic - 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 arsenic -- element number 33 and is famous for the toxicity of its compounds.

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Nowadays, rather than as a pigment or a poison, arsenic has a more interesting and healthy application. As the professor explained, where can you find it at home?

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