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americium    
n. 镅

□

americium
n 1: a radioactive transuranic metallic element; discovered by
bombarding uranium with helium atoms [synonym: {americium},
{Am}, {atomic number 95}]

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  • Americium - Wikipedia
    Americium is a relatively soft radioactive metal with a silvery appearance Its most common isotopes are 241 Am and 243 Am In chemical compounds, americium usually assumes the oxidation state +3, especially in solutions
  • Americium | Radioactive, Synthetic, Transuranic | Britannica
    americium (Am), synthetic chemical element (atomic number 95) of the actinoid series of the periodic table
  • Americium (Am) Element: History, Properties, Uses, Hazards
    Americium from atmospheric nuclear weapons testing may stay in the atmosphere for decades, traveling all over the planet and gradually settling to Earth Its isotopes degrade slowly in the environment, which can be harmful to plants and animals
  • Americium - Element information, properties and uses | Periodic Table
    Element Americium (Am), Group 20, Atomic Number 95, f-block, Mass [243] Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Americium Definition, Facts, Symbol, Discovery, Properties, Uses
    Americium (pronunciation: am-er-ISH-ee-em) is a shiny, silvery, synthetic element belonging to the actinide series and is represented by the chemical symbol Am [1, 2, 3]
  • Americium | Public Health Statement | ATSDR
    What is americium? Americium (pronounced, am-ə'ris (h)-ē-əm) is a human-made, radioactive element There are no naturally occurring or stable isotopes of americium Pure americium is a silvery metal
  • Americium | Am (Element) - PubChem
    Americium was the fourth synthetic transuranic element to be discovered and was named after the continent of North America by analogy to its lighter lanthanide homologue, europium, which was named after Europe, its continent of discovery
  • Americium, what you need to know | Orano
    Discovered in 1944 in the United States during experiments on plutonium, americium is created by neutron capture from plutonium in spent nuclear fuel and owes its name to the American continent
  • Periodic Table of Elements: Los Alamos National Laboratory
    Americium was made by Glenn Seaborg, Ralph James, Leon Morgan, and Albert Ghiorso late in 1944 at the wartime metallurgical laboratory at the University of Chicago It was made as the result of successive neutron capture reactions by plutonium isotopes in a nuclear reactor
  • Americium Element Facts - chemicool. com
    Americium is a silvery-white highly radioactive metal that has a density similar to lead It tarnishes slowly in dry air at room temperature Isotope 241 Am, the most common isotope, decays to 237 Np, emitting alpha and gamma radiation (1)





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