The poisoning death of Alexander Litvinenko in November caused by the radioactive isotope polonium-210 sparked a sharp interest in the exotic material, but the onetime Russian spy was not the first to ...

The same radioactive substance used to fatally poison former Russian spy Alexander V. Litvinenko in London last month is a standard component in products made by a Grand Island tech company. NRD, 2937 ...

British doctors have linked polonium to the poisoning death of Alexander Litvinenko, the former Russian spy. Polonium is a highly radioactive metallic element and is most often used as polonium 210.

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 ...

THE elements 81 (thallium), 82 (lead), and 83 (bismuth) have both radioactive and inactive isotopes, whereas the elements 84–92 are only known in an active form. Several attempts have been made to ...

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 ...