The correct answer is uranium. Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-white metal that occurs naturally in uranium-rich ores. Uranium is a radioactive element and is used in nuclear power plants and nuclear weapons.
Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal that is found in the Earth’s crust and is used in many different products, including steel. Iron is a non-radioactive element.
Thorium is a chemical element with the symbol Th and atomic number 90. It is a radioactive
metal that is found in the Earth’s crust and is used in some nuclear power plants.Rhodium is a chemical element with the symbol Rh and atomic number 45. It is a silvery-white metal that is found in the Earth’s crust and is used in jewelry and other products. Rhodium is a non-radioactive element.