A radioactive element, the parent of radium and other radio elements; atomic weight, 238.029; atomic number, 92.
A radioactive metallic element, not naturally found in its pure state, but commonly extracted from ores like pitchblende, carnotite, and uraninite. Radioactive decay of uranium leads to radiation emission and produces a sequence of radioactive byproducts, such as radium and radon, which can potentially harm tissues and contribute to cancer. Uranium is also chemically toxic, capable of causing harm to the urinary system.