| LC control no. | sh 85004443 |
|---|---|
| LC classification | QD181.A5 General and inorganic chemistry QD412.A5 Organometallic chemistry QD464.A5 Atomic and molecular weights QE516.A5 Geochemistry RC95.A46 Diseases due to radioactive substances TN693.A54 Metallography |
| Topical heading | Americium |
| See also | Rare earth metals Transplutonium elements |
| Found in | Emsley, J. Nature's building blocks, 2011 (Americium; Am; radioactive element; first made late in 1944 at the Univ. of Chicago; silvery, shiny, radioactive metal and one of the actinide group (row 5f) of the periodic table) ChemicalElements.com, Nov. 1, 2012 (Americium. Symbol: Am. Atomic Number: 95. Atomic Mass: (243.0) amu. Number of Protons/Electrons: 95. Number of Neutrons: 148. Classification: Rare Earth) Wikipedia, Nov. 1, 2012 (Americium is a transuranic radioactive chemical 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; was first produced in 1944 by the group of Glenn T. Seaborg at the University of California, Berkeley. Although it is the third element in the transuranic series, it was discovered fourth, after the heavier curium; a relatively soft radioactive metal with silvery appearance) Seaborg, G.T. The new element americium (atomic number 95), 1948: abstr. (element 95; the name americium (after the Americas) and the symbol Am are suggested for the element; sixth member of an actinide rare-earth series) Helmenstine, A.M. Americium facts, via About.com chemistry website, Nov. 1, 2012 (Americium. Symbol: Am. Atomic Number: 95. Element Classification: Radioactive Rare Earth Element (Actinide Series)) |
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