americium periodic table

The half-lives of other isotopes and isomers range from 0.64 microseconds for 245m1Am to 50.8 hours for 240Am. 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. 1. Americium dioxide (AmO 2) Interesting facts: It was discovered as a by-product of the Manhattan Project when testing the atomic bomb. The relative atomic mass of Americium is 243 u. ... Am: Americium: Am: Atomic number: 95: Atomic weight: 243.0614 amu: Stable and very long lived isotopes: N/A: Electronic configuration: 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 4f 14 5s 2 5p 6 5d 10 6s 2 6p 6 7s 2 5f 7: [102], Another proposed space-related application of americium is a fuel for space ships with nuclear propulsion. The biological half-life of 241Am is 50 years in the bones and 20 years in the liver, whereas in the gonads (testicles and ovaries) it remains permanently; in all these organs, americium promotes formation of cancer cells as a result of its radioactivity. The ground state electronic configuration of neutral americium is [ Rn ]. Interactive periodic table of elements - your complete guide to the elements including definition, mass & names of each chemical in the periodic table. Atomic Number. It was made as the res… Its longest lived isotopes are 243 Am, with a half-life of 7370 years and 241 Am with a … Each entry has a full citation identifying its source. Americium-241 (241 Am, Am-241) is an isotope of americium.Like all isotopes of americium, it is radioactive, with a half-life of 432.2 years. Mass number – 243. in Newton Desk, Periodic Table Leave a comment 1,675 views 7 95 Am (Americium) Appearance – Silvery white, Shiny. Nearly all (99.541%) of 242m1Am decays by internal conversion to 242Am and the remaining 0.459% by α-decay to 238Np. [25] Americium-241 is also suitable for calibration of gamma-ray spectrometers in the low-energy range, since its spectrum consists of nearly a single peak and negligible Compton continuum (at least three orders of magnitude lower intensity). Americium was produced by bombarding plutonium with neutrons. They can also transfer their energy to a fluid and generate electricity through a magnetohydrodynamic generator. The "metastable" state is marked by the letter m. Seaborg, G. T.; James, R.A. and Morgan, L. O.: "The New Element Americium (Atomic Number 95)", THIN PPR, Fioni, Gabriele; Cribier, Michel and Marie, Frédéric, Toeniskoetter, Steve; Dommer, Jennifer and Dodge, Tony, Pfennig, G.; Klewe-Nebenius, H and Seelmann Eggebert, W. In late 2006 I published a photo periodic table and it's been selling well enough to encourage me to make new products. As a highly radioactive element, americium and its compounds must be handled only in an appropriate laboratory under special arrangements. To find out more, see our. The most stable nuclear isomer is 242m1Am; it has a long half-life of 141 years. [118][119], Outside and inside view of an americium-based smoke detector. [81][82], Formation of the complexes of the type Am(n-C3H7-BTP)3, where BTP stands for 2,6-di(1,2,4-triazin-3-yl)pyridine, in solutions containing n-C3H7-BTP and Am3+ ions has been confirmed by EXAFS. Phase at room temperature: solid 6. [83], Americium is an artificial element of recent origin, and thus does not have a biological requirement. In the bones, americium is first deposited over cortical and trabecular surfaces and slowly redistributes over the bone with time. [94], About 19 isotopes and 8 nuclear isomers are known for americium. Americium was discovered by Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, and Albert Ghiorso (US) in 1944. Interactive periodic table showing names, electrons, and oxidation states. Both 242Cm and 242Pu transform via nearly the same decay chain through 238Pu down to 234U. It is found under the element europium in the periodical table and was named after the continent America for convenience. We're at the UK's National Nuclear Laboratory (Sellafield) for a look at some Americium. [103][104] The fission products of 242mAm can either directly propel the spaceship or they can heat a thrusting gas. "Neutron and Gamma Ray Source Evaluation of LWR High Burn-up UO, article/200410/000020041004A0333355.php Abstract, "Actinide(III)/Lanthanide(III) Partitioning Using n-Pr-BTP as Extractant: Extraction Kinetics and Extraction Test in a Hollow Fiber Module", "Effective Actinide(III)-Lanthanide(III) Separation in Miniature Hollow Fibre Modules", "Demonstration of a SANEX Process in Centrifugal Contactors using the CyMe4-BTBP Molecule on a Genuine Fuel Solution", "A New Valence State of Americium, Am(Vi)1", "Crystal Structures of the Trifluorides, Trichlorides, Tribromides, and Triiodides of Americium and Curium", "Reduction chemistry of neptunium cyclopentadienide complexes: from structure to understanding", "6-(3,5-Dimethyl-1H-pyrazol-1-yl)-2,2'-bipyridine as Ligand for Actinide(III)/Lanthanide(III) Separation", The Biochemical Periodic Tables – Americium, "Role of Microbes as Biocolloids in the Transport of Actinides from a Deep Underground Radioactive Waste Repository", "Enzymically accelerated biomineralization of heavy metals: application to the removal of americium and plutonium from aqueous flows", "Evaluation of nuclear criticality safety data and limits for actinides in transport", "A novel method for energy production using, Performance of Home Smoke Alarms Analysis of the Response of Several Available Technologies in Residential Fire Settings, "Smoke detectors and americium-241 fact sheet", United States Department of Health and Human Services, Agency for Toxic Substances and Disease Registry, Space agencies tackle waning plutonium stockpiles, "Extremely Efficient Nuclear Fuel Could Take Man To Mars in Just Two Weeks", "An americium-fueled gas core nuclear rocket", "UK scientists generate electricity from rare element to power future space missions", "Rare element could power distant space missions", Institution of Engineering and Technology, The Radioactive Boy Scout: When a teenager attempts to build a breeder reactor, "Man dubbed 'Radioactive Boy Scout' pleads guilty", "Hanford nuclear workers enter site of worst contamination accident", The radiochemistry of americium and curium, "Can the minor actinide, americium-241, be transmuted by thermal neutrons? 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