updated Mon. March 18, 2024
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Prince George Citizen
December 27, 2017
If you look up the definition of isotope, using Google, it provides you with the following: "each of two or more forms of the same element that contain equal numbers ... In reality, technetium - element 43 - is not naturally occurring and the elements from polonium to actinium are so scarce that, for all intents andÃÂ ...
New York Times
November 15, 2017
... and, 20 years later, the lethal poisoning in London of a former K.G.B. officer, Alexander V. Litvinenko, with polonium 210, a rare and highly toxic isotope. With such considerations in mind, the detection of elevated but unexplained levels of ruthenium 106 by monitoring stations in Austria, France, Germany,ÃÂ ...
Scientific American (blog)
November 6, 2017
Curie's accomplishments included the development of the theory of radioactivity, techniques for isolating radioactive isotopes, and the discovery of two chemical elements, polonium and radium. Under her direction, the world's first studies were conducted into the treatment of neoplasms, using radioactiveÃÂ ...
Newsday
June 22, 2017
Over the years that Grumman Aerospace Corp. operated a manufacturing and research facility in Bethpage, the defense contractor handled radium, tritium, polonium, uranium and other radioactive isotopes, according to a document filed with state environmental officials that was obtained by Newsday.
Science News for Students (blog)
May 1, 2017
Less stable isotopes may decay, or break apart, over time. ... Scientists study isotopes from the moon to study where our planet's tagalong came from. ... or unstable, isotope) decays to radium-222 (also a radioactive isotope), which decays to radon-222 (also radioactive), which decays to polonium-210 (alsoÃÂ ...
The Conversation UK
January 21, 2016
There are around 30 different isotopes of polonium ranging in atomic mass from 194 to 218, only differing from each other in their neutron number. The important one is polonium-210, which happens to be the one discovered by Curie. Uranium atoms slowly decay into other atoms, eventually ending up asÃÂ ...
Telegraph.co.uk
January 31, 2015
4 Polonium-210, a rare and expensive isotope created only in nuclear reactors, may have been chosen not as a terror weapon to scare off other dissidents ... by glass, making polonium-210 hard to detect at distance and easier to smuggle through airport security than gamma-emitting radioactive isotopes.
RadioFreeEurope/RadioLiberty
November 8, 2013
Polonium is a metal found in uranium ore whose isotope polonium-210 is highly radioactive, emitting tiny positively charged alpha particles. So long as polonium is kept out of the human body, it poses little danger because the alpha particles travel no more than a few centimeters and cannot pass throughÃÂ ...
The Guardian
November 6, 2013
The substance was polonium-210, a rare and highly radioactive isotope that a Swiss team has discovered in Yasser Arafat's exhumed corpse. It is extremely hard to detect. Scientists only identified it in Litvinenko hours before his death. A former FSB officer, and teetotaller, Litvinenko was a fitness fanatic.
Wired News
July 5, 2012
Polonium, which eventually decays to an isotope of lead, is one of the more unstable points in this chain, unstable enough that there are some 33 known variants (isotopes) of the element. Of these, the best known and most abundant is the energetic isotope polonium-210, with its half life of 138 days.
Pulitzer Center on Crisis Reporting
September 16, 2017
... me that the worst radiation damage comes not from what you touch but from internalized radon daughters: the isotopes of polonium, bismuth,ÃÂ ...
Outlook India
September 14, 2017
... London by poisoning his tea with polonium-210, a rare radioactive isotope), Putin has emerged in the popular imagination as an arch-villainÃÂ ...
STRATFOR
September 14, 2017
... case ended up becoming highly publicized because of sloppiness in the operation, the use of the rare and radioactive isotope polonium 210ÃÂ ...
Newsday
August 9, 2017
... it divulged that dozens of radioactive isotopes like radium, uranium, tritium and polonium were handled by the military contractor from 1960 toÃÂ ...
CBS News
August 7, 2017
In 2006, Alexander Litvenenko, a Russian FSB agent-turned-Kremlin critic was poisoned with the radioactive isotope Polonium 210. That sameÃÂ ...
Al-Arabiya
August 4, 2017
... to produce isotopes for medical purposes, and not to pursue a bomb. ... Iran was in possession of quantities of polonium-210 and beryllium,ÃÂ ...
Science News for Students
August 4, 2017
... (also radioactive), which decays to polonium-210 (also radioactive), which ... The rates of decay from one isotope to another can range from ... unstable elements, such as certain forms (isotopes) of uranium and plutonium.
Science News for Students (blog)
May 1, 2017
Less stable isotopes may decay, or break apart, over time. ... to radon-222 (also radioactive), which decays to polonium-210 (also radioactive),ÃÂ ...
RadioFreeEurope/RadioLiberty
February 2, 2017
A Kremlin critic whose sudden and severe illness in 2015 led to suspicions that he had been poisoned is on life support in a Moscow hospitalÃÂ ...
Phys.Org
December 21, 2016
... isotopes uranium-234, thorium-230, lead-210 and polonium-210. ... Other isotopes appeared less leachable under the conditions tested.
CBC.ca
August 30, 2016
Polonium-210 is a radioactive isotope that was used to kill Alexander ... with the rare and very potent radioactive isotope after fleeing Russia.
Quartz
January 21, 2016
There are around 30 different isotopes of polonium ranging in atomic mass from 194 to 218, only differing from each other in their neutronÃÂ ...
RadioFreeEurope/RadioLiberty
November 8, 2013
Polonium is a metal found in uranium ore whose isotope polonium-210 is highly radioactive, emitting tiny positively charged alpha particles.
The Guardian
November 6, 2013
The substance was polonium-210, a rare and highly radioactive isotope that a Swiss team has discovered in Yasser Arafat's exhumed corpse.
Raw Story
March 24, 2017
... according to Sky News. In November 2006, former intelligence officer-turned-Putin critic Alexander Litvinenko, 43, died after allegedly drinking tea laced with radioactive isotope polonium in a hotel. He was living in London in exile, according to ...
Investopedia
March 22, 2017
As a result, a number of internal political scandals have stretched to involve the capital of the U.K. For instance, in 2006, former FSB officer Alexander Litvinenko was poisoned by a rare radioactive isotope, polonium-210, resulting in his death. One ...
Jackson Clarion Ledger
March 17, 2017
A British public inquiry found two former Russian agents were responsible for carrying out the poisoning with the radioactive isotope Polonium-210 and concluded that Putin was "probably" aware of the operation and assassination of Litvinenko. Also in ...
The Australian Financial Review
February 17, 2017
Two years later, a former KGB agent turned Putin critic named Alexander Litvinenko was poisoned with a radioactive isotope called Polonium-210. He survived for three weeks, helping investigators and even writing a statement from his hospital bed inÃÂ ...
Deadline
February 16, 2017
They worked together to develop the theory of radioactivity and techniques for isolating radioactive isotopes and discovered the elements polonium and radium. The pair were at the dawn of a new scientific and technological era that ushered in the ...
The Straits Times
February 15, 2017
A former KGB spy, Mr Litvinenko was poisoned in 2006 after allegedly drinking tea laced with the radioactive isotope polonium-210 in a posh hotel restaurant in London, where he had been living in exile. The 43-year-old's health deteriorated rapidly and ...
CNN
February 7, 2017
A British public inquiry into that 2006 poisoning found two former Russian agents responsible for carrying out the poisoning with the radioactive isotope Polonium-210. Its final report concluded that Putin was "probably" aware of the operation. The ...
RadioFreeEurope/RadioLiberty
February 6, 2017
Putin and the Kremlin have denied involvement in these and other attacks. In January 2016, after a British judge ruled that Putin might have authorized the fatal poisoning of Aleksandr Litvinenko in London with the radioactive isotope polonium-210 in 2006.
WTOL.com
February 3, 2017
A British public inquiry into that 2006 poisoning found two former Russian agents responsible for carrying out the poisoning with the radioactive isotope Polonium-210. Its final report concluded that Putin was "probably" aware of the operation. The ...
Quartz
January 11, 2017
He was poisoned with polonium 210, a nuclear isotope, and a UK judge concluded earlier this year that Putin ordered the killing.
RadioFreeEurope/RadioLiberty
January 10, 2017
Kovtun and Lugovoi, whom Russia refuses to extradite, have denied involvement despite traces of polonium that British investigators say the two left across London.
Quartz
January 8, 2017
In 2007, the UK expelled Russian diplomats and severed contact between their security services. Much of the West was in an uproar with Moscow.
environmentalresearchweb
January 6, 2017
In addition to uranium-238 and radium-226, the researchers report the samples contained elevated levels of the environmentally persistent radioactive isotopes uranium-234, thorium-230, lead-210 and polonium-210. A simulation of leaching over a range ofÃÂ ...
The Atlantic
December 11, 2016
Two years later, a former KGB agent turned Putin critic named Alexander Litvinenko was poisoned with a radioactive isotope called Polonium-210. He survived for three weeks, helping investigators and even writing a statement from his hospital bed inÃÂ ...
HeritageDaily
December 9, 2016
... Professor Roger Webb, and Senior Liaison Fellow, Professor Chris Jeynes, confirm that a lead codex on loan from the Department of Antiquities in Amman for testing, does not show the radioactivity arising from atmospheric polonium that is typically ...
Times Colonist
November 4, 2016
In theory, there should be sufficient capacity at the remaining facilities to fill the gap. But if just one of them suffered a setback, a worldwide shortage of isotopes might result. Part of the problem is that the isotope most commonly used ...
TechCentral
November 2, 2016
The case for proceeding with the procurement of nuclear power at this point, whether through Eskom or another mechanism, is fundamentally flawed.
Techworm
October 17, 2016
The difference between humans and machines is that we think and take risks. But sometimes risk are too great and can cause fatalities.
ScienceAlert
October 10, 2016
... Curie (1867-1934) aided in the discovery of radioactivity (which was found by investigating properties of X-rays) and introduced techniques for isolating isotopes. She and her husband Pierre Curie discovered the radioactive elements radium and ...
Business Insider
October 9, 2016
... Curie (1867-1934) aided in the discovery of radioactivity (which was found by investigating properties of X-rays) and introduced techniques for isolating isotopes. She and her husband Pierre Curie discovered the radioactive elements radium and ...
Idaho State Journal
October 9, 2016
... the "Gallium Valley" of Pocatello, cloaking devices and nuclear power generators (that would require hundreds kilograms of a polonium isotope that fortunately exists in quantities of only a few grams throughout the world - a sort of Post ...
Yahoo News
September 6, 2016
... concluded in January that Russian President Vladimir Putin had probably given the go-ahead to a Russian intelligence operation to murder Litvinenko, an outspoken Kremlin critic who had also fled to Britain, with the rare radioactive isotope ...
OilPrice.com
September 1, 2016
The waste from oil and gas wells include uranium, thorium, radium, a radioactive isotope of potassium, as well as isotopes of lead and polonium. These are naturally occurring elements that are brought to the surface through fracking. By Irina Slav for ...
The Merkle
August 31, 2016
"Polonium-209 is the radioactive isotope that was used to kill former Russian Federal Security Officer Alexander Litvinenko in 2006," Prosecutor Doug Curliss said.
CBC.ca
August 31, 2016
Polonium-210 is a radioactive isotope that was used to kill Alexander Litvinenko, a former officer of the Russian Federal Security Service, in 2006.
The Seattle Times
August 1, 2016
Nash said the reactor is also used to create radioactive isotopes that are much easier to track in chemical research. "If we need them we can have them made right here," Nash said ... Undergraduate students from all over the country spend six weeks ...
