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.
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TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
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- Video created by Periodic Videos
- Lesson Plan created by Periodic Videos
