A new video about Francium. More links and info in full description ↓↓↓ Underwater Caesium: https://youtu.be/b2YrZNahqiw Videos on all elements: http://bit.ly/118elements Support us on Patreon: https://www.patreon.com/periodicvideos With thanks to Mauricio Gómez for helping research images. Also thanks to Charles DeSorcy Good article on Perey in New York Times: https://www.nytimes.com/2014/12/07/magazine/my-great-great-aunt-discovered-francium-and-it-killed-her.html Great source for more info is Musée Curie: http://musee.curie.fr/public/acjc Trapping Francium: http://jqi.umd.edu/news/vive-la-francium This video features Professor Sir Martyn Poliakoff. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's Blog: http://www.bradyharanblog.com Join Brady's mailing list for updates and extra stuff --- http://eepurl.com/YdjL9