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, …

americium (Am), synthetic chemical element (atomic number 95) of the actinoid series of the periodic table.

Feb 18, 2024 · 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 …

Element Americium (Am), Group 20, Atomic Number 95, f-block, Mass [243]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

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.

Jan 21, 2025 · Americium, a synthetic element with the symbol Am and atomic number 95, is a member of the actinide series in the periodic table. It exhibits fascinating chemical properties, which are …

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].

Nov 17, 2025 · Americium is an artificial chemical element with the symbol Am and atomic number 95. It is a minor actinide produced in small quantities by fission reactions in nuclear reactors.

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, …

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 …