Atomic number 74. wolfram. { bidder: 'sovrn', params: { tagid: '346693' }}, { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, Delivered to your inbox! Copyright © 2010 by It occurs mainly in water and in most organic compounds and is used in the production of ammonia and other chemicals, in the hydrogenation of fats and oils, and in welding. {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, pbjs.que = pbjs.que || []; iasLog("setting page_url: - https://dictionary.cambridge.org/dictionary/english/tungsten"); The online version of the Collins Dictionary has just been updated again, with another batch of new words and meanings inspired by the events of the summer. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, 'min': 0, "authorization": "https://dictionary.cambridge.org/us/auth/info?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&type=ENTRY_TRANSLATE&v1=english&v2=tungsten&v3=&v4=english&_=RANDOM", Last 300 years. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, name: "pubCommonId", What Is The Difference Between “It’s” And “Its”? It occurs principally in wolframite and scheelite and is used in lamp filaments, electrical contact points, X-ray targets, and, alloyed with steel, in high-speed cutting tools. Although tungsten occurs as tungstenite—tungsten disulfide, WS2—the most important ores in this case are the tungstates such as scheelite (calcium tungstate, CaWO4), stolzite (lead tungstate, PbWO4), and wolframite—a solid solution or a mixture or both of the isomorphous substances ferrous tungstate (FeWO4) and manganous tungstate (MnWO4). See more. Can you spell these 10 commonly misspelled words? enableSendAllBids: false, How to use a word that (literally) drives some pe... Name that government! bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, Earlier (1781) the Swedish chemist Carl Wilhelm Scheele had discovered tungstic acid in a mineral now known as scheelite, and his countryman Torbern Bergman concluded that a new metal could be prepared from the acid. var mapping_houseslot_a = googletag.sizeMapping().addSize([963, 0], [300, 250]).addSize([0, 0], []).build(); expires: 60 { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, Tungsten, or wolfram, is a chemical element with the symbol W and atomic number 74. Tungsten crystals are isometric and, by X-ray analysis, are seen to be body-centred cubic. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, All the latest wordy news, linguistic insights, offers and competitions every month. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, Tungsten does not occur as a free metal. { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, Tungsten is a major element of interest in modern material science and metallurgy, so keep your eyes open for new alloys that may surpass any material ever used before. “Affect” vs. “Effect”: Use The Correct Word Every Time, 10 Types Of Nouns Used In The English Language. 'max': 8, 'max': 30, { bidder: 'appnexus', params: { placementId: '11654156' }}, Most material © 2005, 1997, 1991 by Penguin Random House LLC. var pbDesktopSlots = [ Learn more. googletag.pubads().setTargeting("cdo_dc", "english"); Please select which sections you would like to print: Corrections? type: "html5", bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776130', position: 'btf' }}, priceGranularity: customGranularity, In British and American usage, tungsten is preferred; in Germany and a number of other European countries, wolfram is accepted. Learn a new word every day. 'buckets': [{ { bidder: 'sovrn', params: { tagid: '346698' }}, { bidder: 'sovrn', params: { tagid: '346693' }}, Will You Choose a Conflict-Free Microprocessor? iasLog("criterion : cdo_ei = tungsten"); Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. The name tungsten comes from the former Swedish name for the tungstate mineral scheelite, tungsten which means "heavy stone". The names tungsten and wolfram have been used for the metal since its discovery, though everywhere Jön Jacob Berzelius’s symbol W prevails. "noPingback": true, storage: { It is used alone or in combination with other metals to impart wear-resistance to cast iron and the cutting edges of saws and drills. { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, Much tungsten goes into the production of tungsten steels, and some has been used in the aerospace industry to fabricate rocket-engine nozzle throats and leading-edge reentry surfaces. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, We have almost 200 lists of words from topics as varied as types of butterflies, jackets, currencies, vegetables and knots! {code: 'ad_topslot_a', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[300, 50], [320, 50], [320, 100]] } }, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776358', position: 'atf' }}, Chemically, tungsten is relatively inert.

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