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The americium isotope 241 Am is used in smoke detectors. Radioactive americium-241 is used in household smoke detectors and in bone mineral analysis. Americium has 95 protons and electrons. Describe the composition of a neutral atom of this isotope for protons, neutrons, and electrons. Americium was first made late in 1944 at the University of Chicago by a team which included Glenn Seaborg, Ralph James, Leon Morgan, and Albert Ghiorso. The americium was produced by bombarding plutonium with neutrons in a nuclear reactor. Americium has 95 protons and electrons. Like all artificial elements, it has no known stable isotopes.The first isotope to be synthesized was 241 Am in 1944. Americium is a synthetic radioactive chemical element with the symbol Am and atomic number 95. Give the number of electrons, protons, and neutrons in an atom of americium-241. Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. Origin of Name: From smarskite, a mineral: Date and Place of Discovery: In 1879 in Paris, France: Discovered by: Paul Emile Lecoq de Boisbaudran: Common Compounds: Samarium chloride (SmCl 3); Samarium iodide (SmI 2); Interesting facts Number of neutrons: atomic mass of an isotope - number of protons The chemical symbol for Americium is Am . The chemical symbol for Americium is Am . This produced isotope americium-241, which has a half-life of this is 432 years. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Even though protons and neutrons are about 2,000 times heavier than electrons, they are tiny. The number of protons is unique for each chemical element. the Americium is radiate element in the Actinium series 5f in the periodic table its atomic number is 95 so. Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. Larger number (with decimals) on the elements tile. Mass number is represented as the. Adding protons to the amount of neutrons. The number of neutrons can vary by isotope, with three notably synthesized: Am-241 (146 neutrons) Am-242 (147 neutrons) Am-243 (148 neutrons). Americium’s radioactivity drives the smoke detecting mechanism in household smoke detectors. How many protons, neutrons, and electrons are there in this neutral atom of Am 240? Americium (95 Am) is an artificial element, and thus a standard atomic weight cannot be given. In the case of Am-240, how many protons, neutrons, and electrons are there? Mass number is found by. P -95 N- E-95. 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