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Polonium-210 (210 Po, Po-210, historically radium F) is an isotope of polonium. It undergoes alpha decay to stable 206 Pb with a half-life of 138.376 days (about 4 + 1 ⁄ 2 months), the longest half-life of all naturally occurring polonium isotopes ( 210–218 Po). [ 1 ]
Polonium can be found in uranium ores at about 0.1 mg per metric ton (1 part in 10 10), [51] [52] which is approximately 0.2% of the abundance of radium. The amounts in the Earth's crust are not harmful. Polonium has been found in tobacco smoke from tobacco leaves grown with phosphate fertilizers. [53] [54] [55]
Scaramella tests positive for polonium-210 and is admitted into a hospital. Litvinenko's widow also tests positive for polonium-210, but was not sent to the hospital for treatment. 2 December: Scotland Yard's counter-terrorist unit have questioned Yuri Shvets, a former KGB spy who emigrated to the United States in 1993. He was questioned as a ...
There are 42 isotopes of polonium (84 Po). They range in size from 186 to 227 nucleons. They are all radioactive. 210 Po with a half-life of 138.376 days has the longest half-life of any naturally-occurring isotope of polonium and is the most common isotope of polonium. It is also the most easily synthesized polonium isotope.
Naturally occurring radioactive materials (NORM) and technologically enhanced naturally occurring radioactive materials (TENORM) consist of materials, usually industrial wastes or by-products enriched with radioactive elements found in the environment, such as uranium, thorium and potassium and any of their decay products, such as radium and radon. [1]
The powerful alpha emitter polonium-210 (a milligram of 210 Po emits as many alpha particles per second as 4.215 grams of 226 Ra) is suspected of playing a role in lung cancer and bladder cancer related to tobacco smoking. [16] 210 Po was used to kill Russian dissident and ex-FSB officer Alexander V. Litvinenko in 2006. [17]
This page lists radioactive nuclides by their half-life.
Organopolonium chemistry describes the synthesis and properties of chemical compounds containing a carbon to polonium chemical bond.. As polonium is a highly radioactive element (its most commonly used isotope, 210 Po, has a half-life of about 138 days), organopolonium chemistry is mostly unexplored, and what is known is mostly confined to tracer-level studies due to self-destruction and ...