Thallium - Periodic Table of Videos
- 166,133 Views
- 219 Questions Answered
- Best of Web
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.
Agatha Christie’s 1961 detective story, “The Pale Horse”, describes the symptoms of thallium poisoning.