The cities of Berkeley, California and Livermore, California are the locations of the University of California Radiation Laboratory and Lawrence Livermore National Laboratory, respectively. Due to its relatively short half-life, by now any primordial americium would have been decayed. Americium-241 radiation emissions (preceded by Pitchblend ore) displayed in a cloud chamber. For example, roads, schools, libraries, hospitals, and airports are named for people—to honor them—and you would say, 1. It 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. Isotope 241Am is used (in the form of americium dioxide) in very small amounts in ‘ionization chamber’ smoke detectors. For example, in Wikipedia's List of eponymous roads in London, we read that Addison Road is named after the English essayist, poet, playwright and politician Joseph Addision(1672–1719).But sometimes I hear or read named for, where it's clear from the context that the intent is the same. Isotope 241Am, the most common isotope, decays to 237Np, emitting alpha and gamma radiation(1). It is found in abundance in labs where it is made. For I wag my tail when I am angry. Thanks for your comment Caledsa. Smoke detectors use americium. Cunningham as the isotope 241Am in Am (OH)3 in the fall of 1945. Morningfox. The element was named after America, because it is located below Europium (element 63) in the periodic table, which was named after Europe. related riddles. Americium was the fourth synthetic transuranium element of the actinide series to be discovered. Americium is a radioactive transuranic chemical element with symbol Am and atomic number 95. Transuranium elements discovery and experiments. Americium is a chemical element.It is a radioactive metal.It has the chemical symbol Am.It has the atomic number 95. It was discovered by Glenn Seaborg, Leon Morgan, Ralph James, and Albert Ghiorso in 1944 and isolated by B.B. could you put what the ionization energy has to be though? Image Ref.(3). It was first produced at the University of California in 1944, and identified at the University of Chicago. Join Yahoo Answers and get 100 points today. ... and thus by analogy was named after another continent, America. Hmmm, fun little story. Chemistry Dictionary | Birth of the Elements | Tools | Periodic Table | Citing Chemicool | About | Privacy | Contact. 9 years ago. For online linking, please copy and paste one of the following: To cite this page in an academic document, please use the following MLA compliant citation: this was very helpful. After World War II, nuclear physicists discovered they could use plutonium and uranium to create energy. It was produced by the beta-particle decay of plutonium-241, which had been produced in a nuclear reactor by neutron bombardment of plutonium-239. It is used in smoke detectors and can be used as a portable source of gamma rays. Show more, including: Heats, Energies, Oxidation, Reactions. Americium has no naturally occurring isotopes. Favorite Answer. Source: Americium is obtained as a by-product of plutonium processing. Americium is a radioactive rare earth metal which must be handled with care to avoid contact, since it is a heavy α and γ emitter. Seaborg., The Most Useful Actinide Isotope: Americium-241., Journal of Chemical Education. The name americium is derived from the continent America, because americium was discovered in America. Californium – State of California and University of California at Berkeley. Actinides are the 15 elements, all of whose isotopes are radioactive starting with actinium (atomic number 89), and extending to lawrencium (atomic number 103). Isotopes: Americium has 14 isotopes whose half-lives are known, with mass numbers 232 to 247. The americium oxide used in smoke detectors costs around $1500 per gram - compare this with the current gold price of around $30 per gram. So Glenn Seaborg and others suggested that since Europe got an element named after it, that is was now America's turn. This website uses cookies to improve your experience. Where in California is San Jose located ? 2 Answers. It is found under the element europium in the periodical table and was named after the continent America for convenience. Reveal Answer 4. It was named after the Danish physicist Niels Bohr, who helped develop important theories of the structure of atoms in the 1930s. One gram of americium dioxide provides enough active material for more than three million household smoke detectors(2). For research purposes it is produced artificially in small quantities. Americium is the only synthetic element that has found a common consumer use: as the ionization source in commercial and residential smoke detectors. Americium was first isolated as a pure compound by Burris Cunningham in 1945, at the University of Chicago. Get your answers by asking now. Actinium – Aluminum – Americium – Antimony – Argon – Arsenic – Astatine, Barium – Berkelium – Beryllium – Bismuth – Bohrium – Boron – Bromine, Cadmium – Calcium – Californium – Carbon – Cerium – Cesium – Chlorine – Chromium – Cobalt – Copernicium – Copper – Curium, Darmstadtium – Dubnium – Dysprosium – Einsteinium – Erbium – Europium, Fermium – Flerovium – Fluorine – Francium – Gadolinium – Gallium – Germanium – Gold, Hafnium – Hassium – Helium – Holmium – Hydrogen – Indium – Iodine – Iridium – Iron, Krypton – Lanthanum – Lawrencium – Lead – Lithium – Livermorium – Lutetium, Magnesium – Manganese – Meitnerium – Mendelevium – Mercury – Molybdenum – Moscovium, Neodymium – Neon – Neptunium – Nickel – Nihonium – Niobium – Nitrogen – Nobelium – Oganesson – Osmium – Oxygen, Palladium – Phosphorus – Platinum – Plutonium – Polonium – Potassium – Praseodymium – Promethium – Protactinium, Radium – Radon – Rhenium – Rhodium – Roentgenium – Rubidium – Ruthenium – Rutherfordium, Samarium – Scandium – Seaborgium – Selenium – Silicon – Silver – Sodium – Strontium – Sulfur, Tantalum – Technetium – Tellurium – Tennessine – Terbium – Thallium – Thorium – Thulium – Tin – Titanium – Tungsten, Uranium – Vanadium – Xenon – Ytterbium – Yttrium – Zinc – Zirconium, Copyright © 2020 chemicool.com Prizes to mystery and crime writers has a density similar to lead used in nuclear tests conducted between 1945 1980! 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