Nickel - 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 nickel -- its element number 28 and a transition metal.
Metallic nickel can act as a catalyst for the reaction of hydrogen gas with organic compounds that contain C=C bonds. Why do you think the catalyst works better as small particles, rather than as a single large piece of nickel?
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