and here is Martyn Poliakoff at Periodic Videos describing Element 120 - Periodic Table of Videos and the procedure to make it (Note this is from 2011 !) https://www.youtube.com/watch?v=c1rYuslEQLs
This is as well worth the time Superheavy Elements: The End of the Periodic Table: Ken Moody, Chief Scientist for Radiochemistry, explains that recent discoveries of new elements have extended the periodic table beyond what was thought was possible, and demonstrates the existence of a collection of Superheavy Elements with unusual nuclear properties at the limits of stability.
https://www.youtube.com/watch?v=YVqT-HRSoxI
Back in the 1970s there was a news story about possible detection of some stable elements in (what was at that time) a postulated island of stability in the mid-120s of the atomic numbers. The detection was in a piece of African mica, if memory serves. It'll have to serve, a web search turned up bupkis.
