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erbium    
n. 耳

耳

erbium
n 1: a trivalent metallic element of the rare earth group;
occurs with yttrium [synonym: {erbium}, {Er}, {atomic number
68}]

Erbium \Er"bi*um\, n. [NL. from Ytterby, in Sweden, where
gadolinite is found. Cf. {Terbium}, {Yttrium}, {Ytterbium}.]
(Chem.)
A rare earth element of the lanthanide series associated with
several other rare elements in the mineral gadolinite from
Ytterby in Sweden. Symbol Er. It has atomic number 68 and an
atomic weight of 167.26. The pure element is metallic with a
bright, silvery luster. It is relatively stable in air, not
oxidizing as quickly as some other rare earths. Its salts are
rose-colored and give characteristic spectra, and the pink
oxide has been added as a colorant in glass and porcelain
enamel glazes. Its sesquioxide {Er2O3} is called erbia.
--HCP61
[1913 Webster PJC]


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  • Erbium - Wikipedia
    Erbium is a chemical element; it has symbol Er and atomic number 68 A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements It is a lanthanide, a rare-earth element, originally found in the gadolinite mine in Ytterby, Sweden, which is the source of the element's name
  • Erbium | Uses, Properties, Facts | Britannica
    Erbium, chemical element, a rare-earth metal of the lanthanide series of the periodic table Pure erbium is a silvery white metal The major use of erbium is in fiber-optic telecommunications as a component of signal amplifiers in long-distance telephone and data cables
  • Erbium - Element information, properties and uses | Periodic Table
    Element Erbium (Er), Group 19, Atomic Number 68, f-block, Mass 167 259 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Erbium | Er (Element) - PubChem
    Chemical element, Erbium, information from authoritative sources Look up properties, history, uses, and more
  • Erbium Facts - Symbol Er or Atomic Number 68
    Erbium is a silvery-white metallic element with the symbol Er and atomic number 68 It belongs to the lanthanide series of inner transition metals and has characteristic pink-colored compounds, especially erbium oxide Erbium finds use in lasers, nuclear technology, and fiber-optic communications
  • Erbium (Er) - Periodic Table
    Erbium is the 68th element in the periodic table and has a symbol of Er and atomic number of 68 It has an atomic weight of 167 259 and a mass number of 166 Erbium has sixty-eight protons and ninety-eight neutrons in its nucleus, and sixty-eight electrons in six shells
  • erbium - Wiktionary, the free dictionary
    Borrowed from New Latin erbium; itself from Swedish Ytterby (the name of the town where the element was first discovered) +‎ -ium, coined by Swedish chemist and mineralogist Carl Gustaf Mosander in 1843 Doublet of terbium, ytterbium and yttrium
  • The Eccentric Element Erbium | Periodic Table | ChemTalk
    The Element erbium is a silver-colored metal that belongs to the lanthanide series of the periodic table This metal is bright, shiny, soft, and ductile Unlike other rare-earth metals, erbium is stable when exposed to air, as it oxidizes slowly when combined with oxygen
  • Periodic Table of Elements: Los Alamos National Laboratory
    Naturally occurring erbium is a mixture of six isotopes, all of which are stable Nine radioactive isotopes of erbium are also recognized Recent production techniques, using ion-exchange reactions, have resulted in much lower prices of the rare-earth metals and their compounds in recent years
  • Rare Earth Elements - Purdue University
    Erbium is used in heat-absorbing glass, photographic filters, and as a fiber-optic amplifier It's also used to coat sunglasses and to color glass and porcelain





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