Americium-241 (Am-241) is a radioactive isotope of the element americium, which is part of the actinide series in the periodic table. Americium is a synthetic element, first produced in 1944 by Glenn T. Seaborg and his team at the University of California, Berkeley. Am-241 has a half-life of approximately 432.2 years, meaning it takes that amount of time for half of a sample of this isotope to decay.
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