Skip to main content

Promethium - Periodic Table of Videos

152,608 Views

274 Questions Answered

Best of Web

Let’s Begin…

The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. Promethium is element number 61 on the periodic table and its symbol is Pm.

WatchThink 3 Multiple Choice &
1 Open Answer Questions Dig Deeper Learn More Discuss 0 Guided Discussions &
1 Open Discussion …And Finally
Promethium has been used as a paint to create luminous dials and markings by mixing it with zinc sulfide phosphorescent material. Promethium was used to replace the more dangerous radium, but nowadays it has been replaced by a much safer element, a radioactive isotope of hydrogen. Which isotope is this?

About TED-Ed Best of Web

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

Meet The Creators

More from Periodic Videos