This site offers comprehensive information for each element including: who, when up to 40 properties (chemical & physical); over 3, 600 nuclides (isotopes); over 4, 400 nuclide decay modes; the element names in 10 different languages; and more. In addition chemistry and technical terms are linked to their definitions in the site's chemistry and environmental dictionary.

Home About This Site Comments Help Links Window Version Show Table With: Name Atomic Number Atomic Mass Electron Configuration Number of Neutrons Melting Point Boiling Point Date of Discovery Crystal Structure Element Groups: Alkali Metals Alkaline Earth Metals Transition Metals Other Metals Metalloids Non-Metals Halogens Noble Gases Rare Earth Elements Basic Information | Atomic Structure | ...

The Element Americium - Basic Physical and Historical Information ...

Discovered : 1944 by Glenn Seaborg and co-workers Isolated in Chicago, USA Origin : The element is named after America. Description : A man-made radioactive metal, a few grammes of which are produced from plutonium in nuclear reactors each year. Image : Americium is used in smoke alarms . ...