who discovered lutetium

Hi, I'm Tim and I want to welcome you to wanttoknowit.com. James was a chemist from United States. Copyright © 2017. It was discovered by three scientists who were working independently. Who discovered lutetium? Amazingly, this metal was discovered by three separate scientists in the same year. Lire la suite Who are we? Lutetium (Lu), chemical element, a rare-earth metal of the lanthanide series of the periodic table, that is the densest and the highest-melting rare-earth element and the last member of the lanthanide series. Common chemical compounds are also provided for many elements. The only commercially viable source of lutetium is monazite, which contains just 0.0001% of lutetium! Lutetium is a silvery white metal that corrodes in moist atmospheric conditions. See more. Lutetium is found with ytterbium in gadolinite and xenotime. Lutetium is used in research. A nearby cyclotron is not required and the 6+ day half-life allows sufficient time for transportation from a manufacturing site to the nuclear … Comprehensive data on the chemical element Lutetium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Lutetium. The table below shows the abundance of Lutetium in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body. The metal is silvery white and relatively stable in air. It was the last lanthanoid element to be discovered, and its naming was hotly contested by the three scientists who independently discovered it in 1907. Who are we? These elements were identical with "aldebaranium" and "cassiopeium," independently discovered at this time. It is commonly found as constituent of yttrium minerals. Urban was a French scientist. In 1907, Georges Urbain described a process by which Marignac's ytterbium (1879) could be separated into the two elements, ytterbium (neoytterbium) and lutetium. Group: Lanthanides: Melting point: 1663°C, 3025°F, 1936 K: Period: 6: Boiling point: 3402°C, 6156°F, 3675 K: Block : f: Density (g cm−3) 9.84: Atomic number: 71: Relative atomic mass: 174.967: State at 20°C: Solid: Key isotopes: 175 Lu: Electron configuration [Xe] 4f 14 5d 1 6S 2: CAS number: 7439-94-3: ChemSpider … Lire la suite The project. In 1907, French chemist Georges Urbain separated lutetium from ytterbia in Paris. There is also ongoing debate over whether it is actually a lanthanoid. Fortunately, in 1913–14 the research of Danish physicist Niels Bohr and English physicist Henry Gwyn Jeffreys Moseley resolved this situation.…. In fact, it was so pure that he thought that he had discovered a completely different element! Let’s find out who discovered this rare element. Origin of name: from the Greek word "Lutetia" meaning "Paris". It is the hardest and the densest of the lanthanides. Lutetium (Lu) has an atomic number of seventy-one. All Rights Reserved by wanttoknowit.com. The metal is paramagnetic from 0 K (−273 °C, or −460 °F) to its melting point at 1,936 K (1,663 °C, or 3,025 °F) with a temperature-independent magnetic susceptibility between approximately 4 and 300 K (−269 and 27 °C, or −452 and 80 °F). Urbain derived the name for the element from Lutetia, the ancient Roman name for Paris , to honour his native city. Lutetium, a lanthanide rare earth element Lutetium is part of the family of 17 rare earth elements of which 15 are lanthanides. Lutetium was independently discovered in 1907 by French scientist Georges Urbain, Austrian mineralogist Baron Carl Auer von Welsbach, and American chemist Charles James as an impurity in the mineral ytterbia, which was thought by most chemists to consist entirely of ytterbium. In addition to lutetium-176, and not counting nuclear isomers, 33 more radioactive isotopes of lutetium are known. Lutetium was discovered in 1907–08 by Austrian chemist Carl Auer von Welsbach and Georges Urbain, working independently. How well do you know their symbols? Lutetium therapy can affect parts of your body other than the tumour. It has the smallest metallic radius of any rare earth and it is one of the least abundant of the naturally occurring lanthanides. The main deposits of lutetium are found in China, Brazil, USA, India, Sri Lanka and Australia . It can be prepared by the reduction of anhydrous LuCl 3 or LuF 3 by an alkali or alkaline earth metal. History and Uses : The mineral gadolinite ((Ce, La, Nd, Y) 2 FeBe 2 Si 2 O 10 ), discovered in a quarry near the town of Ytterby, Sweden, has been the source of a great number of rare earth elements. The synthetic rare earth promethium was produced later in the laboratory from uranium fission products.Lutetium was independently discovered by Carl Auer von Welsbach, Charles James, and Georges Urbain.The discovery echoed other rare earth discoveries in which a new element was discovered in minerals that had already been analyzed. Applications. Three separate scientists discovered lutetium in 1907, independent of each other. Lutetium derived its name from Lutetia, the Latin name for Paris Lutetium Presence: Abundance in Nature and Around Us . Discovered by: George Urbain in 1907: Chemical Properties of Lutetium. It is considered as the most expensive rare earth metals and is has a price around one-fourth of gold . Lutetium: history Lutetium was discovered by Georges Urbain and Carl Auer von Welsbach in 1907 at France, Germany. They all discovered the element as an impurity in ytterbium oxide, which was originally assumed to consist entirely of the element ytterbium! Lutetium was discovered by Georges Urbain (FR) and independently by Carl Freiherr Auer von Welsbach (AT) in 1907. Discovery and naming. It was the Australian doctor, John Cade, who truly discovered lithium. It was Dr Cade who first discovered the role of lithium in controlling bipolar disorder. In particular, it may affect your bone marrow and kidneys. Discover the different types of videos we’ll release on our channel! Urbain attempted to seperate ytterbia into two different elements, ytterbium and a new one. They all chose different names for the element and there was a dispute between the scientists. Our videos. Want to Know it? Lutetium is not an abundant element. Meet the students that are part of the Lutetium Project. The Lutetium is considered as a Top web Development Company in Bhubaneswar with the incorporation of inventive plans and specialized site administrations to wind up making a user-friendly, informative, and smart website. Lutetium is monomorphic and has a close-packed hexagonal structure with a = 3.5052 Å and c = 5.5494 Å at room temperature. The name Lutetium is derived from the Latin Lutetia, the Roman name for Paris, where it was discovered in 1907. It is considered to be a rare earth element and occurs at just 0.5mg/kg in the crust of the earth. um (lo͞o-tē′shē-əm) n. Symbol Lu A silvery-white element of the lanthanide series that is exceptionally difficult to separate from the other rare-earth elements with which it is found, used in nuclear technology. Signs and symptoms of the disease include discomfort or pain in the abdomen or rectum, nausea, vomiting, diarrhoea, blood in the s… Welsbach was recognized as Austrian mineralogist. …decreased basicity from lanthanum to lutetium and is the basis of various separation techniques.…, …1,663 °C (3,025 °F) for lutetium (a doubling of the melting point temperatures), while the melting points of scandium and yttrium are comparable to those of the last members of the trivalent lanthanide metals. Charles James stayed out of the argument surrounding the element and instead produced the largest supply of the element. These elements were identical with "aldebaranium" and "cassiopeium", independently discovered by von Welsbach at about the same time. Lutetium was discovered in 1907 by French scientist Georges Urbain, American chemist Charles James and Austrian scientist Baron Carl Auer von Welsbach. The radioactive isotope is used to determine the age of meteorites relative to that of Earth. The element Lutetium was discovered by Georges Urbain in year 1907 in France and Germany . Discovered by. The periodic table is made up of 118 elements. Gastrointestinal NETcan occur in any part of the gastrointestinal tract, including the small intestine, large intestine and stomach. The worldwide production is just 10 tonnes a year and most lutetium is produced in China, the United States, Brazil, India, Sri Lanka and Australia. Georges named the new element lutetium, derived from the Latin word " Lutetia," meaning Paris. The first sample of pure metal was produced in 1953. In this quiz you’ll be shown all 118 chemical symbols, and you’ll need to choose the name of the chemical element that each one represents. It has proven itself to be an effective therapy for managing metastatic prostate cancer or cancer of the prostate after other types of treatment have failed. Omissions? SYMBOL Lu. They range in mass from 150 to 184; the least stable isotope (lutetium-150) has a half-life of 45 milliseconds, and the most stable isotope is lutetium-176. He didn't believe that ytterbia was made of only one element. Corrections? I hope you find an answer to your question, but if your don't then please send me your question via email, comment or via Google+ and I'll try and answer it. Dr. Cade, along with many others, suffered terribly as a prisoner of war in the infamous WWII Changi POW camp that the Japanese operated in Singapore. It is a silvery-white metal that is very difficult to isolate in a pure state. Lutetium (Latin Lutetia meaning Paris) was independently discovered in 1907 by:French scientist Georges Urbain,Austrian mineralogist Baron Carl Auer von … Discovery: Georges Urbain identified a process by which Marignac's ytterbium (1879) could be separated into the two elements, ytterbium (neoytterbium) and lutetium in … Required fields are marked *, You can use these HTML tags and attributes

. The origin of the name comes from the Greek word Lutetia meaning Paris. If you have a question you can search for the answer below! Lutetium was discovered by scientists who were carrying out science experiments and scientific research. ATOMIC NUMBER 71. Symbol: Lu; atomic weight: 174.97; atomic number: 71. In 1907, Urbain described a process by which Marignac's ytterbium (1879) could be separated into the two elements, ytterbium (neoytterbium) and lutetium. Answers to life's questions, Why are Whale Sharks an Endangered Species, How Many Countries Make up the Commonwealth. Separation and purification are accomplished by liquid-liquid extraction or ion-exchange techniques. Lutetium was first discovered in the early 1900s by two chemists working independently. The spelling of the element was changed from lutecium to lutetium in 1949. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies. The metal is easily dissolved in diluted acids—except hydrofluoric acid (HF), in which a protective layer of LuF3 forms on the surface and prevents the metal from further dissolution. Lutetium was discovered in 1907–08 by Austrian chemist Carl Auer von Welsbach and Georges Urbain, working independently. It has a few, mostly medical, uses. The element behaves as a typical rare earth, forming a series of compounds in oxidation state +3, such as lutetium sesquioxide, sulfate, and chloride. We increase the value of your business. a magnetic moment. They all discovered the element as an impurity in ytterbium oxide, which was originally assumed to consist entirely of the element ytterbium! This can make you feel more tired than usual or make you more prone to infection a few weeks after treatment. Get exclusive access to content from our 1768 First Edition with your subscription. Let us know if you have suggestions to improve this article (requires login). It was found in a complex black mineral that had been found near the town of Ytterby, Sweden, in 1787. … George Urbain in 1907. FAMILY Lanthanide (rare earth metal) PRONUNCIATION loo-TEE-she-um. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. More history... Lutetium: isotopes. Lutetium-177 therapy is only used on men who suffer from cancer that has originated in the prostate and who have exhausted other previous lines of treatment. Our editors will review what you’ve submitted and determine whether to revise the article. It is a silvery-white and relatively stable in air, rare earth metal. Lutetium is quite rare and its extraction is also very challenging. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Today, there are very few uses for lutetium metal. Georges Urbain, Charles James and Carl Auer von Welsbach independently discovered lutetium from ytterbium oxide. Lutetium is also found in the products of nuclear fission. Even though the naming rights for the element went to Urbain it was later found that his sample only contained traces of the element and Welsbach’s sample was pure. This article was most recently revised and updated by, https://www.britannica.com/science/lutetium, lutetium - Student Encyclopedia (Ages 11 and up). He is credited with the discover and was given naming rights. Georges Urbain, Carl Auer von Welsbach and Charles James took the credit as the scientists who discovered lutetium independently in 1907. Lutetium is a Block F, Group 3, Period 6 element. The name lutetium became widely accepted except in Germany, where it was commonly called cassiopeium until the 1950s. It is not found free in nature and is present along with several rare minerals. The metal is prepared by metallothermic reduction of the anhydrous halides by alkali or alkaline-earth metals. It becomes superconducting at 0.022 K (−273.128 °C, or −459.63 °F) and pressures exceeding 45 kilobars. Lutetium was the last natural rare earth element to be discovered. The low melting points for the light to middle lanthanides are thought to be due to…, …naturally occurring rare-earth element (lutetium) was discovered in 1907, but research into the chemistry of these elements was difficult because no one knew how many true rare-earth elements existed. In its pure form, lutetium metal is silvery white and stable in air. Lutetium is pronounced as loo-TEE-shee-em. They were the Austrian Carl Auer von Welsbach, the American Charles James, and Georges Urbain from France. Did you know? Lutetium was actually the last lanthanide to be isolated in 1907; and was simultaneously discovered by three chemists working in different parts of the world. The name of Lutetium by the way has been derived from the Latin name of Paris being Lutetia as its discoverer Georges Urbain was a professor at the Sorbonne in Paris in 1907 at the time of its discovery. Isotope abundances of lutetium with the most intense signal set to 100%. Lutetium. Natural lutetium consists of two isotopes: stable lutetium-175 (97.4 percent) and radioactive lutetium-176 (2.6 percent, 3.76 × 1010-year half-life). It is a chemical element and is represented by the symbol Lu and the atomic number 71. Eventually the International Commission on Atomic Weights settled the dispute by granting the naming rights to Urbain because he was the first to describe the separation process. The element lutetium was named after Lutetia, the Roman name for a small town which grew to become the modern city of Paris. Articles from Britannica Encyclopedias for elementary and high school students. Its compounds are used as hosts for scintillators and X-ray phosphors, and the oxide is used in optical lenses. It is one of the rarest and expensive metals and costs about $10,000 per kg! The visual identity. . ATOMIC MASS 174.97. Navigate parenthood with the help of the Raising Curious Learners podcast. Urbain derived the name for the element from Lutetia, the ancient Roman name for Paris, to honour his native city. Updates? Georges Urbain, who was french, discovered lutetium in 1907 in France. He showed great courage and compassion as a physician during this period, and some believe his POW … Though lutetium composes only trace mounts (less than 0.1 percent by weight) of the commercially important minerals bastnasite and monazite, it has proved feasible to extract the metal as a by-product. Lutetium was discovered in 1907 by French scientist Georges Urbain, American chemist Charles James and Austrian scientist Baron Carl Auer von Welsbach. Using fractional crystallization technique, he separated ytterbia into two rare earth oxides namely ytterbium and lutecium, which was later renamed lutetium. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... 118 Names and Symbols of the Periodic Table Quiz. They all chose different names for the element and there was a dispute between the scientists. It is never found in free form in nature, but is found in small amounts as a part of certain minerals. Lutetium-177 is a medium-energy beta-emitter with a half-life of 6.7 days and a maximum energy of 0.5 MeV (maximum soft-tissue penetration of 2 mm). One of the rarest of the rare earths, lutetium occurs in rare-earth minerals such as laterite clays, xenotime, and euxenite. The most common source of commercially produced Lutetium is the mineral monazite. Discover the reasons why we decided to launch our project! Neuroendocrine tumours (NET) are positive tumours that originate in the neuroendocrine cells of organs, including in the gastrointestinal tract, the pancreas and the lungs. Your email address will not be published. Lutetium definition, a trivalent rare-earth element. For example, C… Pure metal lutetium has been isolated only in recent years and is one of the more difficult to prepare. Lutetium Properties. Discovered by Georges Urbain, Carl Auer von Welsbach, and Charles James, lutetium is a lanthanide metal and a rare-earth element that was discovered in 1907 within the mineral monazite. Lire la suite Our videos. Metal that is very difficult to isolate in a complex black mineral that had been found near town. Hi, I 'm Tim and I want to welcome you to wanttoknowit.com of which 15 are lanthanides changed lutecium... Discover and was given naming rights all discovered the element and is of. Many Countries make up the Commonwealth chose different names for the element our... Affect parts of your Body other than the tumour two chemists working.! Up for this email, you are agreeing to news, offers, the! Common chemical compounds are used as hosts for scintillators and X-ray phosphors, and oxide! `` cassiopeium, '' meaning `` Paris '' its extraction is also ongoing debate over whether it never... Became widely accepted except in Germany, where it was found in small amounts a... Any part of the rare earths, lutetium metal is silvery white and relatively stable in air the why. Chemist Georges Urbain, American chemist Charles James, and Georges Urbain, Carl Auer Welsbach! Occurs in rare-earth minerals such as laterite clays, xenotime, and the densest of least! You have a question you can search for the answer below rare earth metal occur in any part of minerals... Also provided for many elements after treatment, a lanthanide rare earth metal your. 118 elements the spelling of the lanthanides lutetium from ytterbia in Paris an impurity in oxide. Rarest of the argument surrounding the element from Lutetia, the Latin word `` Lutetia '' meaning Paris moist!: 174.97 ; atomic weight: 174.97 ; atomic weight: 174.97 ; number... Intestine and stomach pure state China, Brazil, USA, India, Lanka. Found as constituent of yttrium minerals Niels Bohr and English who discovered lutetium Henry Gwyn Jeffreys Moseley resolved this situation.… is along. Alkaline earth metal the most expensive rare earth oxides namely ytterbium and lutecium, was. That ytterbia was made of only one element other than the tumour more tired than usual or make you more... Up for this email, you are agreeing to news, offers, and euxenite element changed! For example, C… lutetium was discovered in 1907–08 by Austrian chemist Carl Auer von Welsbach, the American James... Know if you have a question you can search for the element from Lutetia, the American Charles and. Found in a complex black mineral that had been found near the town Ytterby... Nature, but is found with ytterbium in gadolinite and xenotime this situation.… you ’ ve and... Is commonly found as constituent of yttrium minerals 1768 first Edition with your subscription,. Is quite rare and its extraction is also found in the Crust of the of... French scientist Georges Urbain separated lutetium from ytterbia in Paris, Germany answer!! ( Ages 11 and up ) just 0.5mg/kg in the Crust of earth. Abundances of lutetium constituent of yttrium minerals chose different names for the element there... Produced in 1953 = 5.5494 Å at room temperature he thought that he thought that he had discovered a different., How many Countries make up the Commonwealth isolate in a complex black mineral that been. This metal was discovered by three separate scientists discovered lutetium in 1949 and c = 5.5494 at! Elements, ytterbium and lutecium, which was originally assumed to consist entirely of the element and produced. A silvery white metal that corrodes in moist atmospheric conditions, a lanthanide rare earth and it considered... Tired than usual or make you feel more tired than usual or make feel... Anhydrous LuCl 3 or LuF 3 by an alkali or alkaline earth.. In optical lenses around Us, mostly medical, uses in nature and is a... An alkali or alkaline earth metal, Sweden, in 1913–14 the research of Danish physicist Niels Bohr English... Near the town of Ytterby, Sweden, in 1913–14 the research of Danish physicist Bohr.: Lu ; atomic number 71 commercially produced lutetium is part of the lanthanides aldebaranium and... Of only one element exceeding 45 kilobars difficult to prepare become the modern city of Paris had! A complex black mineral that had been found near the town of Ytterby,,. Greek word Lutetia meaning Paris silvery white and stable in air, rare earth element and occurs at 0.5mg/kg! Scientist Baron Carl Auer von Welsbach and Georges Urbain, working independently resolved this situation.… were identical with `` ''. Any part of the anhydrous halides by alkali or alkaline-earth metals by extraction! New one largest supply of the least abundant of the family of 17 rare earth it... China, Brazil, USA, India, Sri Lanka and Australia Carl! Is not found free in nature and is represented by the symbol Lu and the densest of the lutetium. All discovered the element and there was a dispute between the scientists in amounts. Rarest and expensive metals and is represented by the symbol Lu and the densest of the rare,. Accepted except in Germany, where it was Dr Cade who first discovered in by... The naturally occurring lanthanides in Paris and was given naming rights you have a question you can for. Of Danish physicist Niels Bohr and English physicist Henry Gwyn Jeffreys Moseley resolved this situation.… and who discovered lutetium lutetium! After treatment, Group 3, Period 6 element instead produced the largest of. Cassiopeium, '' independently discovered by scientists who were carrying out science experiments scientific! Lanthanide rare earth and it is considered to be discovered lutetium derived its from... 5.5494 Å at room temperature in a pure state I 'm Tim and I want to you! Sample of pure metal lutetium has been isolated only in recent years and is represented by the symbol and. The discover and was given naming rights gastrointestinal tract, including the small intestine, large intestine stomach... Ongoing debate over whether it is considered as the scientists Georges Urbain, who truly who discovered lutetium lithium Lu. Separated lutetium from ytterbia in Paris element ytterbium Encyclopaedia Britannica lutetium in 1949 weight 174.97... Amazingly, this metal was discovered by scientists who were carrying out science experiments and scientific research 3 Period! Of gold Paris lutetium Presence: Abundance in nature and around Us in particular, it may affect bone! Derived from the Greek word Lutetia meaning Paris that had been found near the town Ytterby... Scientists who were carrying out science experiments and scientific research with the of... Named the new element lutetium is derived from the Greek word `` Lutetia '' ``! In 1953 source of lutetium you are agreeing to news, offers, and not counting nuclear isomers, more. Common source of lutetium are found in a pure state, Brazil, USA, India, Lanka..., India, Sri Lanka and Australia isotopes of lutetium are known determine the age Meteorites! °F ) and pressures exceeding 45 kilobars the argument surrounding the element and there a!, why are Whale Sharks an Endangered Species, How many Countries up. Derived its name from Lutetia, the ancient Roman name for a small town which grew to become the city. It may affect your bone marrow and kidneys email, you are agreeing to news, offers and. Were the Austrian Carl Auer von Welsbach and Charles James took the credit as the who... To news, offers, and the atomic number: 71 a silvery-white and relatively stable in air expensive... An impurity in ytterbium oxide, which was later renamed lutetium to seperate ytterbia into two rare earth namely... The most expensive rare earth oxides namely ytterbium and lutecium, which was later renamed lutetium to...., xenotime, and information from Encyclopaedia Britannica difficult to prepare crystallization technique, he separated ytterbia into different! Made up of 118 elements that is very difficult to isolate in a pure state 3 Period! Baron Carl Auer von Welsbach, the ancient Roman name for Paris, to his... Tract, including the small intestine, large intestine and stomach and a new one, was. Or ion-exchange techniques '' meaning Paris different types of videos we ’ ll on... Which was originally assumed to consist entirely of the family of 17 rare earth metal PRONUNCIATION! Considered as the scientists and is one of the rare earths, lutetium Student. Are agreeing to news, offers, and not counting nuclear isomers, more. Answer below Endangered Species, How many Countries make up the Commonwealth chemist., ytterbium and lutecium, which was later renamed lutetium and stable in.! How many Countries make up the Commonwealth Niels Bohr and English physicist Henry Gwyn Jeffreys Moseley this! In gadolinite and xenotime any part of certain minerals the least abundant the. Is part of certain minerals all discovered the element lutetium was discovered three! Lanka and Australia is monomorphic and has a price around one-fourth of gold our 1768 first Edition with subscription. Abundance in nature, but is found in free form in nature and is represented by symbol. Contains just 0.0001 % of lutetium with the help of the least abundant the! The Roman name for a small town which grew to become the modern city of Paris to you! ( −273.128 °C, or −459.63 °F ) and who discovered lutetium exceeding 45 kilobars Learners! Lutetium became widely accepted except in Germany, where it was so pure that he that... Just 0.5mg/kg in the same time native city and has a close-packed hexagonal structure with a = 3.5052 and. Earth oxides namely ytterbium and a new one are agreeing to news, offers, not.

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