1) Atomic number 100 2) Chemical element 3) Element discovered in 1952 4) Element number 100 5) Element with the symbol Fm 6) Metal 7) Metallic element 8) Radioactive element 9) Synthetic element
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Fermium is a synthetic element with symbol Fm and atomic number 100. It is a member of the actinide series. It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities, although pure fermium metal has not yet been prepared. A total of 19 isotope...
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http://en.wikipedia.org/wiki/Fermium
(Fm), synthetic chemical element of the actinoid series of the periodic table, atomic number 100. Fermium (as the isotope fermium-255) is produced by ... [2 related articles]
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http://www.britannica.com/eb/a-z/f/18
<chemical> Fermium. A man-made radioactive actinide with atomic symbol fm, atomic number 100, and atomic weight 257. Its known isotopes range from 244-254 and 256-258. Its valence can be +2 or +3. Like einsteinium, it was discovered in 1952 in the debris from a thermonuclear explosion. ... Chemical name: Fermium ... (12 Dec 1998) ...
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(Fm) (fur´me-әm) a chemical element, atomic number 100, atomic weight 253.
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(Fm) Type: Term Pronunciation: fĕr′mē-ŭm Definitions: 1. Radioactive element, artificially prepared in 1955, atomic no. 100, atomic wt. 257.095; 257Fm has the longest known half-life (100.5 days) of this transuranium element.
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Fermium is a man made, radioactive metal element with the symbol Fm. It is named after Enrico Fermi.
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[
n] - a radioactive transuranic metallic element produced by bombarding plutonium with neutrons
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http://www.webdictionary.co.uk/definition.php?query=fermium
A man-made element with an atomic number of 100. Symbol Fm
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https://www.encyclo.co.uk/local/20687
Fm noun a radioactive transuranic metallic element produced by bombarding plutonium with neutrons
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Synthesized, radioactive, metallic element of the actinide series, atomic number 100, relative atomic mass 257.10. Ten isotopes are known, the longest-lived of which, Fm-257, has a half-life of 80 days. Fermium has been produced only in minute quantities in particle accelerators. It was discovered in 1952 in the debris of the first ther...
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