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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 ]
Static eliminators typically use polonium-210, an alpha ... 's 2006 murder by radiation poisoning is thought to have been carried out with polonium-210, ...
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]
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.
Polonium-210 in tobacco contributes to many of the cases of lung cancer worldwide. Most of this polonium is derived from lead-210 deposited on tobacco leaves from the atmosphere; the lead-210 is a product of radon-222 gas, much of which appears to originate from the decay of radium-226 from fertilizers applied to the tobacco soils.
Enhanced concentrations of the radium 226 and 228 and the daughter products such as lead-210 may also occur in sludge that accumulates in oilfield pits, tanks and lagoons. Radon gas in the natural gas streams concentrate as NORM in gas processing activities. Radon decays to lead-210, then to bismuth-210, polonium-210 and stabilizes with lead ...
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 ...
[2] [3] A small amount of polonium-210 (50 curies, 11 mg) was deposited in the grooves of the shell and on the central sphere: the layers of gold and nickel served to shield the beryllium from alpha particles emitted by the polonium. The whole urchin weighed about 7 grams and was attached to mounting brackets in a 2.5 cm diameter inner cavity ...
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