An isotope of which chemical element was used to poison Alexander Litvinenko?
Poisoning of Alexander Litvinenko of its original radioactivity about 18 months after production. By measuring the proportion of polonium and lead in a sample, one can establish the production date of polonium. The analysis of impurities in the polonium (a kind of "finger print") allows identification of the place of production. The isotope used in killing of Litvinenko has been traced by a British theoretical physics professor Norman Dombey: In addition, Dombey pointed out that Avangard delivers a metallic polonium, which must have been further processed into a solution as used in the Litvinenko assassination, involvement of an FSB poison laboratory was also likely.
Poisoning of Alexander Litvinenko hair loss and damage to peripheral nerves,<ref name="50/50"></ref> and a photograph of Litvinenko in hospital, released to the media on his behalf, indeed showed his hair to have fallen out. Litvinenko attributed his initial survival to his cardiovascular fitness and swift medical treatment. It was later suggested a radioactive isotope of thallium might have been used to poison Litvinenko. Amit Nathwani, one of Litvinenko's physicians, said "His symptoms are slightly odd for thallium poisoning, and the chemical levels of thallium we were able to detect are not the kind of levels you'd see in toxicity." Litvinenko's condition deteriorated, and he