_:n4ed623e789e5444bac625cc4117fcd69xb0
<http://schema.org/description>
"TED-Ed Lesson: The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about iodine, the pretty purple element, which is part of one of the professor's favorite chemical equations.\n "
<https://ed.ted.com/best_of_web/EB1TS2J5/think?dir=backward&question_number=2>