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mendelevium    
n. 一种放射性元素

一种放射性元素

mendelevium
n 1: a radioactive transuranic element synthesized by bombarding
einsteinium with alpha particles (Md is the current symbol
for mendelevium but Mv was formerly the symbol) [synonym:
{mendelevium}, {Md}, {Mv}, {atomic number 101}]

mendelevium \men*de*le"vi*um\ (m[e^]n*d[e^]*l[=e]"v[=e]*[u^]/m),
a. [From Dmitri Mendeleyev, discoverer of the periodic law.]
(Chem.)
an unstable radioactive element discovered in 1955 and
produced artificially only in very small quantities; symbol
Md (also Mv). It is a transuranic element with atomic number
101. Isotopes 255, 256, 257, and 258 have been prepared.
Md258, the longest-lived, has a half-life of two months.
--HCP61
[PJC]


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  • Mendelevium - Wikipedia
    Mendelevium is a synthetic chemical element; it has symbol Md (formerly Mv) and atomic number 101 A metallic radioactive transuranium element in the actinide series, it is the first element by atomic number that currently cannot be produced in macroscopic quantities by neutron bombardment of lighter elements
  • Mendelevium | Radioactive, Synthetic, Actinide | Britannica
    mendelevium (Md), synthetic chemical element of the actinoid series of the periodic table, atomic number 101 It was the first element to be synthesized and discovered a few atoms at a time
  • Mendelevium (Md) - Definition, Preparation, Properties, Uses . . .
    What is Mendelevium? Mendelevium is a synthetic element with the chemical symbol Md and atomic number 101 It is known for being produced in particle accelerators through the bombardment of atomic nuclei
  • Mendelevium Facts, Symbol, Discovery, Properties, Uses
    Mendelevium (pronounced as men-deh-LEE-vee-em) is a radioactive metal that belongs to the family of actinides and represented by the chemical symbol Md Its most stable isotope is Md-258 with a half-life of 51 5 days [1, 4]
  • Mendelevium - Element information, properties and uses . . .
    Element Mendelevium (Md), Group 20, Atomic Number 101, f-block, Mass [258] Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Mendelevium Element Facts - chemicool. com
    Mendelevium is a synthetic, highly radioactive metal and has only been produced in miniscule amounts Mendelevium was the first element to be produced one atom at a time Mendelevium metal has not been prepared
  • Facts About Mendelevium - Element 101 or Md - ThoughtCo
    Get facts about mendelevium, which is atomic number 101 on the periodic table, with element symbol Md Learn about its history, properties, and uses





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