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Thallium - 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. Poisonous thallium is element number 81 and its chemical symbol is Tl.

Additional Resources for you to Explore

For all the basics about thallium, check out the Visual Elements Periodic Table.
For amazing photos and facts about thallium, check out The Elements by Theodore Gray.

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