Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation, their unique properties enable them to be used in a broad variety of applications, including water and soil ...

Uranium (chemical symbol U) is a naturally occurring radioactive element ... and specific activity. The half life of a radioactive isotope is the time taken for it to decay to half of its original ...

This discovery is highly important for nuclear physics, particularly regarding transuranium elements, those beyond uranium on ...