Americium-241 is widely used in smoke detectors. The radiation released by this element ionizes particles that are then detected by a charged-particle collector. The half-life of 241Am is 433 years, and it decays by emitting alpha particles. How many alpha particles are emitted each second by a 5.00-g sample of 241Am?
Answer to relevant QuestionsKrypton consists of several radioactive isotopes, some of which are listed in the following table. Isotope .... Half-life Kr-73 ...... 27s Kr-74 ...... 11.5 min Kr-76 ...... 14.8 h Kr-81 ...Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in studies of nucleic acids. The half-life of phosphorus-32 is 14.3 days. What mass of phosphorus-32 is left from an original sample ...A proposed system for storing nuclear wastes involves storing the radioactive material in caves or deep mine shafts. One of the most toxic nuclides that must be disposed of is plutonium-239, which is produced in breeder ...The mass defect for a lithium-6 nucleus is —0.03434 g/mol. Calculate the atomic mass of lirhium-6. During the research that led to production of the two atomic bombs used against Japan in World War II, differ ent mechanisms for obtaining a supercritical mass of fissionable material were investigated. In one type of bomb, ...
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