The most radioactive elements found on Earth include Polonium, Radium, and Radon. Learn why elements with short half-lives, ...

What is Marie Curie Famous for? Explore her life, biography, and the legacy of her discoveries: radium and polonium.

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...

In November 2006, a former Soviet spy was hospitalized with a mysterious illness. He later died from polonium poisoning. This element might be the most lethal one in the world. Produced by Kevin ...

And now, a radioactive word, from one of the most astonishing storiesof the week. polonium (puh-LOH-nee-uhm) n. Symbol "Po." A naturally radioactive metallic element, occurring in minute quantities as ...

A LARGE number of investigations have been carried out on the disintegration of light nuclei bombarded with α-particles. In several cases excitation curves have been obtained for the γ-Radiation as a ...

The putative polonium poisoning of former Soviet spy Alexander Litvinenko has aroused great interest in the radiation protection community (C&EN, Dec.4, 2006, page 15). As a long-etired radiation ...

Elizabeth Rona’s work taught us fundamental details about atoms. Her preoccupation with the radioactivity of seawater and ocean sediments revealed the hands of a clock, stretching back eons. She did ...