Look up: americium

1. americium
   [n] - a radioactive transuranic metallic element
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Americium
   Radioactive element of the actinide series. Symbol AmDiscoveredFirst synthesized in a series of successive neutron capture reactions in the element plutonium, 239Pu, in a nuclear reactor in 1944 by American scientists under Glenn T. Seaborg at the University of California lab in Berkeley, California.
   Found on http://www.diracdelta.co.uk/science/sour
   
   
3. Americium
   Americium: Symbol: Am. A man-made metallic element whose isotopes Am-237 through Am-246 are all radioactive. Americium must be handled with great care to avoid personal contamination. Trace quantities of americium are widely used in smoke detectors. It is also used in bone mineral analysis and as a ...
   Found on http://www.medterms.com/script/main/art.
   
   
4. americium
   chemical element:atomic number 95 Category: Chemistry
   Found on http://www.mijnwoordenboek.nl/definition
   
   
5. americium
   <chemical, element> Americium. A completely man-made radioactive actinide with atomic symbol am, atomic number 95, and atomic weight 243. Its valence can range from +3 to +6. ... Because of its nonmagnetic ground state, it is an excellent superconductor. It is also used in bone mineral analysi...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
6. americium
   Am noun a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
7. americium
   (Am) (am″әr-is´e-әm) a radioactive chemical element, atomic number 95, atomic weight 243.
   Found on http://www.encyclo.co.uk/local/21001
   
   
8. americium
   synthetic chemical element (atomic number 95) of the actinoid series of the periodic table. Undetected in nature, americium (as the isotope ... [1 related articles]
   Found on http://www.britannica.com/eb/a-z/a/62
   
   
9. americium
   (Am) Type: Term Pronunciation: am′ĕ-ris′ē-ŭm Definitions: 1. An element obtained by the bombardment of uranium with neutrons or β decay of plutoniums 241, 242, and 243; atomic no. 95; atomic weight 243.06. 241Am (half-life of 432.2 years) has been used in the d...
   Found on http://www.medilexicon.com/medicaldictio
   
   
10. americium
    americium (ămuri'shēum) , artificially produced radioactive chemical element; symbol Am; at. no. 95; mass no. of most stable isotope 243; m.p. about 1,175°C; b.p. about 2,600°C; sp. gr. 13.67 at 20°C; valence +2, +3, +4, +5, or +6. Americium is a silver-white metal though...
    Found on http://www.infoplease.com/ce6/sci/A08037
    
    
11. Americium
    Americium is a synthetic chemical element with the symbol Am that is the most frequently used element for superconducting devices. It is artificially produced from plutonium, and is used commercially in gauges, distance-sensing devices, and smoke alarms. Americium was first synthesised in a nuclear ...
    Found on http://www.probertencyclopaedia.com/brow
    
    
12. americium
    Radioactive metallic element of the actinide series, atomic number 95, relative atomic mass 243.13; it was first synthesized in 1944. It occurs in nature in minute quantities in pitchblende and other uranium ores, where it is produced from the decay of neutron-bombarded plutonium, and is the element with the highest atomic number that occur...
    Found on http://www.talktalk.co.uk/reference/ency
    
    
13. Americium
    `Americium` ( ) is a synthetic element that has the symbol `Am` and atomic number 95. This transuranic element of the actinide series is located in the periodic table below the lanthanide element europium, and thus by analogy was named after another continent, America.--> Americium was first produce...
    Found on http://en.wikipedia.org/wiki/Americium