who discovered actinium element
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Actinium: historical information Actinium was discovered by Andre Debierne in 1899 and independently by F. Giesel in 1902, both of whom obtained it while working on separation techniques for rare earth oxides.
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10 Actinium Facts 1 One of the more noteworthy actinium facts is that the element glows blue in the dark. 2  Actinium is a silver-colored metal that has properties similar to those of lanthanum, the element located directly above it on the periodic table.
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- Around mid-century, Mendeleev began to develop the table of elements which helped in the discovery of new elements. In the last decade of the century, the discovery of radium by Marie and Pierre Curie, and the electron by Becquerel as well as observation of radioactivity in the laboratory, challenged Dalton's theory.
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Svante Arrhenius Svante Arrhenius. Svante Arrhenius was a renowned Swedish chemist who was born in Wik Castle, Sweden in 1859. He was awarded the Nobel Prize for Chemistry in 1905.Although generally considered a chemist, Arrhenius was also keenly interested in physics, and is widely recognized as one of the fathers of physical chemistry.vante Arrhenius. Svante Arrhenius was a renowned Swedish chemist who was born in Wik Castle, Sweden in 1859. He was awarded the Nobel Prize for Chemistry in 1905.
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It's Elemental Holmium was discovered in France by the Frenchman Jacques-Louis Soret in 1878. Holmium was discovered by Per Theodor Cleve, a Swedish chemist, in 1879. Cleve used the same m … ethod Carl Gustaf Mosander used to discover lanthanum, erbium and terbium, he looked for impurities in the oxides of other rare earth elements.
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My Great-Great-Aunt Discovered Francium. And It Killed Her. She was in the final stages of purifying actinium, one of the rarest and most dangerous elements yet discovered, from uranium ore. Ten tons of ore yielded just one or two milligrams of actinium; Perey, who joined the institute as a teenager to be the personal technician for Marie Curie, was an expert in its isolation.
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Strontium Element Facts Strontium metal was first isolated in 1808 by Sir Humphry Davy working in London using electrolysis. Davy had built a very large 600-plate battery, which he used to pass electricity through salts, breaking them down in order to isolate new elements. He mixed magnesium oxide to a paste with (probably) strontium sulfate.
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- Penicillin was discovered in 1928 by the Scottish scientist Sir Alexander Fleming accidentally when he was conducting experiments in his laboratory. He noticed that microbes i … n some of his cultures were killed off by the growth of Penicillium mold.e didn't. Alexander Fleming discovered Penicillin but Florey and Chain developed it and also mass produced it. Fleming discovered penicillin in 1928 and Florey and Chain deve … loped it during the second World War.
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- Atomic Number: 99. Einsteinium, the seventh transuranic element of the actinide series to be discovered, was identified by Ghiorso and co-workers at Berkeley in December 1952 in debris from the first large thermonuclear explosion, which took place in the Pacific in November, 1952.
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- Protactinium (atomic number 91) is a metal discovered by Oswald Gohring and Kasimir Fajans in 1913. It was only in 1934 when the element was first isolated. Protactinium-231 was discovered by John Cranston and Frederick Soddy and Lisa Meitner and Otto Hahn in 1918.This metal is found in uranium ores while its isotopes are present in uranium-238 and uranium-235.Protactinium is a rare metal that reacts with inorganic acids, water vapor, and oxygen.It is toxic, radioactive, and harmful for human health. Because protactinium is a rare element, it is not used for commercial purposes and only for scientific research.pent nuclear fuel is also used to extract the metal. In households, it is found in smoke detectors in the form of protactinium-233 which is the product of decay of neptunium-237. The isotope itself has a half life of only 27 days (in comparison, the half life of protactinium-231 is over 32,000 years).
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10 Actinium Facts All isotopes of actinium are radioactive. It was the first non-primordial radioactive element to be isolated, even though other radioactive elements had been identified. Radium, radon, and polonium were discovered before actinium but weren't isolated until 1902.
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Cerium: historical information Cerium: historical information. Cerium was discovered by Wilhelm von Hisinger, Jöns Jacob Berzelius, Martin Klaproth at 1803 in Sweden, Germany. Cerium was discovered in 1803 by Jöns Jacob Berzelius and Wilhelm Hisinger and independently by Martin Klaproth. It was isolated from a mineral from an iron mine at Bastn°s.
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The discovery of radium Let us look at the discovery of the elements polonium and radium: they were tentatively announced by the team of Pierre Curie, Marie Curie, and Gustave Bemont in 1898.It was four more years, however, until Marie Curie was able to isolate a pure enough sample of radium to measure some of its properties.er husband, Pierre Curie, a physicist at the University, was her partner in the work until his death in 1906. The first step was to look at the source of the radiation. It was known that materials containing compounds of uranium and thorium were radioactive (a term coined by Marie Curie).
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- 2, 3. Einsteinium, the seventh transuranic element of the actinide series to be discovered, was identified by Ghiorso and co-workers at Berkeley in December 1952 in debris from the first large thermonuclear explosion, which took place in the Pacific in November, 1952. The 20-day 253Es isotope was produced.
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Polonium: the essentials Polonium was the first element discovered by Marie Sklodowska Curie in 1898, while seeking the cause of radioactivity of pitchblende from Joachimsthal, Bohemia.It required several tonnes of pitchblende to produce very small amounts of polonium.olonium is produced through decay of the small quantities of the bismuth isotope 210 Bi present in pitchblende (uranite, largely UO 2). However the quantities are very small. Uranium ores might contain about 0.0001 g of polonium in a tonne of ore.
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It's Elemental Americium was discovered in 1944 by the American scientists Glenn T. Seaborg, Ralph A. James, Leon O. Morgan and Albert Ghiorso. They produced americium by bombarding plutonium -239, an isotope of plutonium, with high energy neutrons. This formed plutonium-240, which was itself bombarded with neutrons.
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- Discovered Polonium and Radium. The 1897 discovery of radioactivity by Henri Becquerel inspired Marie and Pierre Curie to investigate further this phenomenon.
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- Rating Newest Oldest. Best Answer: Googol: The term was coined in 1938 by 9 year old Milton Sirotta (1929–1981), nephew of American mathematician Edward Kasner. Kasner popularized the concept in his book Mathematics and the Imagination (1940).he term Googol was coined in 1938[1] by 9 year old Milton Sirotta (1929–1981), nephew of American mathematician Edward Kasner. and Google was a company and a brand. Source(s): http://en.wikipedia.org/wiki/Googol http://en.wikipedia.org/wiki/Google. flying-spaghetti · 5 years ago.
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- Marie met Pierre Curie, Professor and researcher at the Paris University, in 1894 when she started research for her doctoral thesis in his laboratory. They married in 1895 and had two children, Eve and Irene. In 1898, with Pierre Curie, she discovered two new elements, polonium and radium. Pierre passed away in 1906, victim of an accident. She continued research isolating polonium and radium to fully demon-strate the existence of the elements discovered through their radioactive emissions.
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Who Discovered Radon In 1900 a German physicist named Friedrich Ernst Dorn discovered the radioactive gas that is emitted from radium when studying its decaying chains and named it Radium Emanation. Friedrich Ernst Dorn is credited with the discovery of Radon.
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It's Elemental History and Uses: Osmium and iridium were discovered at the same time by the British chemist Smithson Tennant in 1803. Osmium and iridium were identified in the black residue remaining after dissolving platinum ore with aqua regia, a mixture of 25% nitric acid (HNO 3) and 75% hydrochloric acid (HCl).
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Nuclear fission Nuclear fission of heavy elements was discovered on December 17, 1938 by German Otto Hahn and his assistant Fritz Strassmann, and explained theoretically in January 1939 by Lise Meitner and her nephew Otto Robert Frisch.Frisch named the process by analogy with biological fission of living cells.he amount of free energy contained in nuclear fuel is millions of times the amount of free energy contained in a similar mass of chemical fuel such as gasoline, making nuclear fission a very dense source of energy.
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Periodic table history In 1863 English chemist John Newlands divided the then discovered 56 elements into 11 groups, based on characteristics. In 1869 Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them. In 1886 French physicist Antoine Bequerel first discovered radioactivity. In 1897 English physicist J. J. Thomson first discovered electrons; small negatively charged particles in an atom.
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ACTINIUM Actinium has chemical properties like those of lanthanum (number 57), the element just above it in the periodic table. Actinium is also similar to radium, the element just before it (number 88) in Row 7. Naturally occurring actinium is very rare in the Earth's crust. It can be made in the lab by firing neutrons at radium, but it has very few important uses.
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- History and Uses: Lanthanum was discovered by Carl Gustaf Mosander, a Swedish chemist, in 1839. Mosander was searching for impurities he believed existed within samples of cerium. He treated cerium nitrate (Ce(NO 3) 3) with dilute nitric acid (HNO 3) and found a new substance he named lanthana (La 2 O 3).Roughly 0.0018% of the earth's crust is composed of lanthanum.anthanum also makes up about 25% of Misch metal, a material that is used to make flints for lighters. Lanthana (La 2 O 3) is used to make the glass used in camera lenses and in other special glasses.
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Plutonium Back to Elements List. Plutonium is the second transuranium element of the actinide series. Element 93 was discovered in 1940/41 by Glenn T. Seaborg, Edwin M. McMillan, J. W. Kennedy, and A. C. Wahl by deuteron bombardment of uranium-238 in the 60-inch cyclotron at the University of California, Berkeley Lab.