- Home
- Radium, on the periodic table of the elements. Radioactive alkaline earth metal, with symbol Ra and atomic number 88. Decays into radon gas with ionizing radiation, which can cause radioluminescence. Mouse Pad #582989720
Radium, on the periodic table of the elements. Radioactive alkaline earth metal, with symbol Ra and atomic number 88. Decays into radon gas with ionizing radiation, which can cause radioluminescence. Mouse Pad #582989720