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Rhenium - 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 video will be about rhenium, an extremely expensive metal, often used in aircraft engines.

Rhenium is in the same group (7) as manganese, but their salts are not very similar. Potassium permanganate has a dark violet color; by contrast, what is the color of perrhenate?

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