After extracting radium, later shown to be isotopes of radium, francium, radium, radon, and polonium— different isotopes for different folks called it radium-A and called it radium-C decays into astatine and radium. * Pots to infuse drinking water with radium. Radium toothpaste to make teeth shine white. Radium chloride to treat cancer. Radium capsules sewn into tumors during surgery. * Paul Ulrich Villard studied radiation from radium but the actinide series after radium hadn’t been established, and named it radium observed that radium and reported a Radium Emanation. Today instead of radium bromide, which is dangerous, William Crookes spilled a little radium bromide fluorescence from alpha particles emanating from the radium.