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ruthenium    
n. 釕



ruthenium
n 1: a rare polyvalent metallic element of the platinum group;
it is found associated with platinum [synonym: {ruthenium},
{Ru}, {atomic number 44}]

Ruthenium \Ru*the"ni*um\, n. [NL. So named from the Ruthenians,
a Little Russian people, as coming from Russia, the metal
having been found in the Ural mountains.] (Chem.)
A rare element of the light platinum group, found associated
with platinum ores, and isolated as a hard, brittle
steel-gray metal which is very infusible. Symbol Ru. Atomic
weight 103.5. Specific gravity 12.26. See {Platinum metals},
under {Platinum}.
[1913 Webster]

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英文字典中文字典相關資料:
  • Ruthenium - Wikipedia
    Ruthenium is a chemical element; it has symbol Ru and atomic number 44 It is a rare transition metal belonging to the platinum group of the periodic table Like the other metals of the platinum group, ruthenium is unreactive to most chemicals
  • Ruthenium | Chemical Element, Catalysts, Alloys | Britannica
    ruthenium (Ru), chemical element, one of the platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table, used as an alloying agent to harden platinum and palladium Silver-gray ruthenium metal looks like platinum but is rarer, harder, and more brittle
  • Facts About Ruthenium - Live Science
    Ruthenium is a member of the platinum group It is a hard, white transition metal It does not tarnish at room temperatures but oxidizes explosively It can be attacked by halogens and
  • Ruthenium - Element information, properties and uses | Periodic Table
    Element Ruthenium (Ru), Group 8, Atomic Number 44, d-block, Mass 101 07 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Facts About the Element Ruthenium (or Ru) - ThoughtCo
    Ruthenium is a hard, brittle metal, commonly used in alloys and known for its corrosion resistance Ruthenium's discovery dates back to 1844 by Karl Klaus, and its name comes from the Latin word for Russia Ruthenium is toxic, with RuO4 being especially harmful, and it can stain or discolor the skin
  • Ruthenium | History, Uses, Facts, Physical Chemical Characteristics
    Ruthenium is a rare metal It is ranked as the seventy-fourth most abundant element and is present around 100 parts per trillion in the Earth’s crust The elemental or free form of ruthenium is very rare Mostly, ruthenium is present in minerals and ores, especially with platinum, in minute amounts
  • Ruthenium (Ru) – Definition, Preparation, Properties, Uses . . . - Examples
    Discover the fascinating world of Ruthenium, a versatile and rare transition metal that plays a pivotal role in modern technology and industrial applications This complete guide offers an in-depth look into Ruthenium’s unique properties, exploring its various uses from electronics to catalysis
  • Ruthenium Facts, Symbol, Discovery, Properties, Uses - Chemistry Learner
    A transition metal, ruthenium (pronounced as roo-THE-nee-em) is denoted by the chemical symbol Ru [1] Its abundance in the earth’s crust is estimated to be 1×10 -7 % [19] It is one of the precious metals, belonging to the platinum family that also includes rhodium, palladium, osmium, and iridium [20, 26]
  • Ruthenium Element Facts - chemicool. com
    Ruthenium is a very rare, hard, lustrous, brittle, silvery-white metal that does not tarnish at room temperature Typical of transition metals, ruthenium can exist in many oxidation states, its most common being the oxidation states II, III and IV
  • Ruthenium | Ru | CID 23950 - PubChem
    Ruthenium atom is an iron group element atom and a platinum group metal atom Ruthenium is a mineral with formula of Ru The corresponding IMA (International Mineralogical Association) number is IMA1974-013 The IMA symbol is Ru A hard, brittle, grayish-white rare earth metal with an atomic symbol Ru, atomic number 44, and atomic weight 101 07





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