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fermium    音標拼音: [f'ɛrmiəm]
n. 鐨



fermium
n 1: a radioactive transuranic metallic element produced by
bombarding plutonium with neutrons [synonym: {fermium}, {Fm},
{atomic number 100}]

fermium \fermium\ n.
the transuranic element of atomic number 100; symbol Fm. The
atomic weight of the most stable isotope, having a half-life
of about 80 days, is 257. The first isotope, Fm255 was
discovered in 1952 in the debris of a thermonuclear
explosion. Other istopes have been produced in nuclear
reactors and by decay of other transuranic elements. --Handb.
Ch. Phys. 61.

Syn: Fm.
[WordNet 1.5]



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英文字典中文字典相關資料:
  • Fermium - Wikipedia
    Fermium was discovered in the debris of the first hydrogen bomb explosion in 1952, and named after Enrico Fermi, one of the pioneers of nuclear physics Its chemistry is typical for the late actinides, with a preponderance of the +3 oxidation state but also an accessible +2 oxidation state
  • Fermium - Element information, properties and uses | Periodic Table
    Fermium is usually produced using accelerators like cyclotrons now, although it has a special place in the periodic table as the highest numbered element that can be produced in a nuclear reactor, rather than by smashing atoms together in an accelerator
  • Periodic Table of Elements: Los Alamos National Laboratory
    Fermium is produced as the result of multiple neutron captures in lighter elements, such as uranium and curium, followed by successive beta decays The probability of such events increases with increased neutron flux, and nuclear explosions are the most powerful neutron sources on Earth
  • Fermium, Facts, Symbol, Discovery, Uses - Chemistry Learner
    Fermium (pronounced as FER-mee-em) [2] is a synthetic, transuranium, radioactive element [3] with the symbol Fm [1] belonging to the family of inner transition metals [10] It has 18 isotopes with mass numbers ranging from 242 to 259 of which Fm-257 is the most stable isotope with a half-life of 100 5 days [2, 3]
  • Fermium Element Facts - chemicool. com
    Fermium is a synthetic, highly radioactive metal and has only been produced in miniscule amounts Under normal conditions, it behaves in aqueous solution as expected for a trivalent actinide ion
  • Fermium: Element Properties and Uses - samaterials. com
    Fermium (Fm) is a highly radioactive, synthetic metal with an atomic number of 100 It is produced in nuclear reactors and high-energy explosions Due to its short half-life and scarcity, fermium is primarily used for scientific research
  • Fermium Facts - Element Fm or Atomic Number 100
    Fermium is a synthetic radioactive element with the symbol Fm and atomic number 100 It is a member of the actinide series and is the eighth transuranium element in the periodic table
  • Fermium | Fm | CID 23998 - PubChem
    Fermium is an actinoid atom and a f-block element atom A man-made radioactive actinide with atomic symbol Fm, and atomic number 100 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 Fm
  • Facts About the Element Fermium - ThoughtCo
    Fermium is a synthetic transuranium element It belongs to the actinide element group Although samples of fermium metal have not been produced for study, it is possible to make a fermium and ytterbium alloy The resulting metal is shiny and silver-colored
  • Fermium (Fm) - Element 100 - Properties, Uses Facts
    Fermium is a highly radioactive, synthetic metal with the atomic number 100 and the symbol Fm It is a member of the actinide series and holds the distinction of being the heaviest element that can be produced by neutron bombardment of lighter elements





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