That doesn’t make this gas any less heroic though: during the Cold War, its radioactive isotope ... Antimony has probably the most chequered past of all the elements on this list.

A breakthrough in heavy-element chemistry shatters long-held assumptions about transuranium elements. Researchers have ...

Oak Ridge National Laboratory discovered a rare radioactive element called promethium. Nearly 80 years later, scientists have unlocked it.

The roof of the power plant, they argue, has become "the most dangerous place on earth ... The researchers detected "elevated levels" of radioactive elements like americium, cesium, and ...

Exotic elements such as Thorium ... workers ended the production of hot camera lenses. Thorium is the most abundant radioactive material on Earth, but it eventually turns into lead.

These radioactive elements in minerals and ores originally found in the environment ... It can in a solid, a liquid or a gas form. The processes most often associated with processing of NORM with ...

For example, most carbon (≈ 99 %) has 6 protons and 6 neutrons ... Stable isotopes do not decay into other elements. In contrast, radioactive isotopes (e.g., 14C) are unstable and will decay into ...