What is the atomic number for platinum?Discovery of Polonium:Polonium was the first element discovered by Marie Curie and her husband Pierre Curie. After discovering the element in 1898, Marie Curie chose to name it after Poland, the country of her birth....
If platinum as a whole exists at 7.5 ppb in the earth’s crust, Pt-190 would be 0.014% of that: 0.00105 ppb or about one part per trillion. Therefore, isotopically pure platinum-190 is the most precious metal in the world. As of this writing, a well-known chemical supply firm now ...