Your doctor will put a video camera or tiny robot into your chest. Itâll guide the creation of scar tissue that may help keep your heartbeat at the right pace. A more invasive maze procedure is done during open heart surgery. People usually have surgical ablation if they are already having valve or bypass surgery for heart disease.
Rhodium is a silver-white hard metal often found in platinum ores. It is the most expensive precious metal. In its natural solid state Rhodium is far too hard to work, but it is used as an alloy in the smelting of platinum and palladium.
Radium is a silvery-white metal. It is highly radioactive and its decay product, radon gas, is also radioactive. One result of radiumâs intense radioactivity is that the metal and its compounds glow in the dark. When it is exposed to air, it reacts with nitrogen to quickly form a black coating of radium nitride.iscovery of Radium. Radium was discovered in 1898 in Paris, by Marie S. Curie and her husband Pierre in pitchblende (mainly uranium dioxide, UO 2).