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beryllium    音标拼音: [bɚ'ɪliəm]
n. 金皮

金皮

beryllium
n 1: a light strong brittle grey toxic bivalent metallic element
[synonym: {beryllium}, {Be}, {glucinium}, {atomic number 4}]

Glucinum \Glu*ci"num\, n. [Cf. F. glucinium, glycium, fr. Gr. ?,
sweet. Cf. {Glycerin}.] (Chem.)
A rare metallic element, of a silver white color, and low
specific gravity (2.1), resembling magnesium. It never occurs
naturally in the free state, but is always combined, usually
with silica or alumina, or both; as in the minerals
phenacite, chrysoberyl, beryl or emerald, euclase, and
danalite. It was named from its oxide glucina, which was
known long before the element was isolated. Symbol Gl. Atomic
weight 9.1. Called also {beryllium}. [Formerly written also
{glucinium}.]
[1913 Webster]


Beryllium \Be*ryl"li*um\, n. [NL.] (Chem.)
A metallic element found in the beryl. See {Glucinum}.
[1913 Webster]


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  • Beryllium - Wikipedia
    Beryllium is a chemical element; it has symbol Be and atomic number 4 It is a steel-gray, hard, strong, lightweight and brittle alkaline earth metal It is a divalent element that occurs naturally only in combination with other elements to form minerals Gemstones high in beryllium include beryl (aquamarine, emerald, red beryl) and chrysoberyl It is a relatively rare element in the universe
  • Beryllium - Occupational Safety and Health Administration
    Beryllium is used industrially in three forms: as a pure metal, as beryllium oxide, and most commonly, as an alloy with copper, aluminum, magnesium, or nickel Beryllium oxide (called beryllia) is known for its high heat capacity and is an important component of certain sensitive electronic equipment
  • Beryllium | Properties, Uses, Facts | Britannica
    Beryllium, chemical element that is the lightest member of the alkaline-earth metals of Group 2 of the periodic table It is used in metallurgy as a hardening agent and in many outer space and nuclear applications It is a steel-gray metal that is quite brittle at room temperature
  • Beryllium - Element information, properties and uses | Periodic Table
    Beryllium is a silvery-white metal It is relatively soft and has a low density Beryllium is used in alloys with copper or nickel to make gyroscopes, springs, electrical contacts, spot-welding electrodes and non-sparking tools Mixing beryllium with these metals increases their electrical and thermal conductivity
  • Beryllium Facts, Symbol, Discovery, Properties, Common Uses
    Beryllium definition, sources, characteristics (melting point, electron configuration, valence electrons), Bohr atom model diagram, toxicity, fun facts, pictures
  • Beryllium Facts - Science Notes and Projects
    Get interesting beryllium facts Discover the properties, uses, sources, and health risks of the element with symbol Be or atomic number 4
  • Beryllium Statistics and Information | U. S. Geological Survey
    Beryllium oxide is an excellent heat conductor, with high strength and hardness, and acts as an electrical insulator in some applications The United States, one of only three countries that process beryllium ores and concentrates into beryllium products, supplies most of the rest of the world with these products
  • Periodic Table of Elements: Los Alamos National Laboratory
    At ordinary temperatures, beryllium resists oxidation in air, although its ability to scratch glass is probably due to the formation of a thin layer of the oxide Uses Beryllium is used as an alloying agent in producing beryllium copper, which is extensively used for springs, electrical contacts, spot-welding electrodes, and non-sparking tools
  • Beryllium | Be | CID 5460467 - PubChem
    Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust Beryllium compounds are commercially mined, and the Beryllium is purified for use in nuclear weapons and reactors, aircraft and space vehicle structures, instruments, x-ray machines, and mirrors Beryllium ores are used to make speciality ceramics for electrical and high-technology applications
  • Beryllium contamination and its risk management in terrestrial and . . .
    Beryllium is used as an alloy with other metals in the aerospace, electronics, and mechanical industries Because of its unique chemical properties, Be is an essential component in many important industrial products required in the aerospace, computer, defense, medical, nuclear, and telecommunications industries (Lyalina et al , 2018) Beryllium is a good conductor of electricity and heat and





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