All the Elements Named After People, Highlighting the first 10 скачать в хорошем качестве

All the Elements Named After People, Highlighting the first 10

The Elements named from People. Highlight of the first 10 elements named from humans and remaining 9 at the end. #chemistry #science #physics #nuclear #einstein Transcript (First 5k characters) Out of the 118 Elements of the Periodic Table, only 19 are named after people, some directly and some indirectly. Here is a look of the first 10 Elements to be named after our fellow humans, and how their names came to be. 1. Samarium. The very first element to be named after a person was discovered  by French chemist Paul-Emile Lecoq de Boisbaudron. Samarium, with atomic number 62, was named after the mineral samarskite, from which Paul-Emile first isolated it in 1879. Samarskite the mineral was discovered in the Ural Mountains of Russia in 1839 by German mineralogist Gustav Rose, and it was named after the Russian mine official Colonel Vassili Samarsky-Bykhovets who had granted Rose access to the mineral samples in the Ural mountains. 2. Gadolinium. 1 year after Samarium was discovered, bearing atomic number 64, Gadolinium was discovered in 1880 by the Swiss chemist Jean Charles Galissard de Marignac and isolated in its pure form 6 years later in 1886 by Boisbaudron.  Gadolinium is so named after the mineral gadolinite, one of the minerals in which it was extracted and in turn gadolinite  was named after the Finnish mineralogist and chemist, Johan Gadolin in 1800. 3. Americium. Moving into the 20th century and heavier elements, the element  with 95 protons, was discovered in 1944 by the team at Met Lab during the days of the Manhattan Project. After bombarding Pu239 with alpha particles this element was produced.  Glen T. Seaborg, who worked on the project, thought it appropriate to name the actinide element Americium, to contrast  its counterpart in the lanthinide series, element 63 Europium. This would, indirectly, name the element after the name sake of the Americas, Amerigo Vespucci. 4. Curium. Discovered in 1944,   the same year as Americium and under similar circumstances , element 96 was found by the bombardment of Pu239 with alpha particles using the cyclotron at Berkeley, California. Element 96 was found to have seven 5f electrons and was analogous to the seven 4f electrons of Gadolinium. So to maintain the similarities, the name Curium was suggested in honour of Pierre and Marie Curie, the pioneers of polonium and radium, as Gadolinium was in honour of Johan Gadolin. 5. Berkelium. Discovered 5 years after Curium, element 97 would be the 5th transuranium element to be found. The Berkeley group gives the following statement regarding its choice of name saying, "It is suggested that element 97 be given the name berkelium (symbol Bk) after the city of Berkeley in a manner similar to that used in naming its chemical homologue terbium (atomic number 65) whose name was derived from the town of Ytterby, Sweden, where the rare earth minerals were first found." Thus, indirectly, Berkelium was named after the Bishop George Berkeley, an 18th century Anglo-Irish philosopher who is the namesake for both the city and school in California. 6. Einsteinium. The element with 99 protons was discovered just 3 years after Berkelium in 1952 and was found in the debris of Ivy Mike, the first hydrogen bomb explosion in 1952. Only a very small quantity of about 200 atoms were detected. Element 99 was named in the honour of Albert Einstein and, as with the next element, was very close to being the first element named after a living person as the name was made official the same year but shortly after Einstein's passing in April of 1955. 7. Fermium. Element 100 was also discovered in the fall out of the first hydrogen bomb as Einsteinium was, however just shortly after in 1953. Due to the tensions of the cold war, information on both elements were classified until 1955 and then published the same year. Element 100 was given the name after the man who was called the Architect of the Nuclear Age, Enrico Fermi and the name, just like Einsteinium, was proposed while Enrico Fermi was alive, though he passed in 1954 before the name Fermium was made official in 1955. 8. Mendelevium. The element with a 101 protons was discovered in 1955 by bombarding Einsteinium with alpha particles aka helium nuclei. 101 was name after Dmitri Mendeleev, the famous Russian chemist of the 19th century. Glen T. Seaborg recalls back to the naming of the element saying. "We thought it fitting that there be an element named for the Russian chemist Dmitri Mendeleev, who had developed the periodic table. In nearly all our experiments discovering transuranium elements, we'd depended on his method of predicting chemical properties based on the element's position in the table. But in the middle of the Cold War, naming an element for a Russian was a somewhat bold gesture that did not sit well with some American critics."