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.

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

Feb 18, 2024 · Although americium has no natural sources, it was most likely present at some point in the past when uranium concentrations in the area were sufficient to cause nuclear reactions. …

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, …

Nov 1, 2023 · Learn about the history and properties of americium, and how LANL became the only distributor of americium-241 in the United States.

Americium is found in concentrated form on earth at the sites of nuclear weapons tests and at nuclear incidents sites. For research purposes it is produced artificially in small quantities.