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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
    It is the thirteenth actinide, the ninth transuranic element, and the first transfermium; it is named after Dmitri Mendeleev, the father of the periodic table Like all the transfermiums, it can only be produced in particle accelerators by bombarding lighter elements with charged particles
  • Mendelevium - Element information, properties and uses | Periodic Table
    Element Mendelevium (Md), Group 20, Atomic Number 101, f-block, Mass [258] Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • 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 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 | Md (Element) - PubChem
    Chemical element, Mendelevium, information from authoritative sources Look up properties, history, uses, and more
  • Mendelevium Element Facts - chemicool. com
    Mendelevium was the ninth synthetic transuranium element of the actinide series to be discovered It was first identified by Albert Ghiorso, Bernard Harvey, Gregory Choppin, Stanley Thompson, and Glenn Seaborg in 1955 at the Lawrence Berkeley National Laboratory, California
  • Mendelevium (Md) - Periodic Table
    Mendelevium is the 101st element in the periodic table and has a symbol of Md and atomic number of 101 It has an atomic weight of (258) and a mass number of 244
  • Periodic Table of Elements: Los Alamos National Laboratory
    Mendelevium is named after Dmitri Mendeleev It is the ninth transuranium element of the actinide series discovered It was first identified by Ghiorso, Harvey, Choppin, Thompson, and Seaborg in early in 1955 during the bombardment of the isotope 253 Es with helium ions in the Berkeley 60-inch cyclotron
  • Mendelevium - EniG. Periodic Table of the Elements
    Mendelevium was discovered by Albert Ghiorso, Bernard G Harvey, Gregory R Choppin, Stanley G Thompson, and Glenn T Seaborg (US) in 1955 Named in honour of Dimitri Mendelejev, the Russian chemist who devised the periodic table It is a synthetic radioactive metal
  • Mendelevium: Properties, Isotopes, Uses Facts Explained - Vedantu
    Mendelevium is a highly radioactive, synthetic element in the actinide series It is denoted by the symbol Md and atomic number 101 It can only be produced by bombarding lighter elements with charged molecules





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