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Author : W. F. Reed,E. J. Spitzer,L. E. Burkhart
Publisher : Unknown
Page : 8 pages
File Size : 47,7 Mb
Release : 1949
Category : Promethium
ISBN : UOM:39015086477513
Author : Anonim
Publisher : Unknown
Page : 978 pages
File Size : 42,9 Mb
Release : 1974-07
Category : Nuclear energy
ISBN : UOM:39015023546529
Author : Marco Fontani,Mariagrazia Costa,Mary Virginia Orna
Publisher : Oxford University Press
Page : 577 pages
File Size : 46,7 Mb
Release : 2014-10-01
Category : Science
ISBN : 9780199383351
The Periodic Table of Elements hasn't always looked like it does now, a well-organized chart arranged by atomic number. In the mid-nineteenth century, chemists were of the belief that the elements should be sorted by atomic weight. However, the weights of many elements were calculated incorrectly, and over time it became clear that not only did the elements need rearranging, but that the periodic table contained many gaps and omissions: there were elements yet to be discovered, and the allure of finding one had scientists rushing to fill in the blanks. Supposed "discoveries" flooded laboratories, and the debate over what did and did not belong on the periodic table reached a fever pitch. With the discovery of radioactivity, the discourse only intensified. Throughout its formation, the Periodic Table of Elements has seen false entries, good-faith errors, retractions, and dead ends. In fact, there have been more falsely proclaimed elemental discoveries throughout history than there are elements on the table as we know it today. The Lost Elements: The Periodic Table's Shadow Side collects the most notable of these instances, stretching from the nineteenth century to the present. The book tells the story of how scientists have come to understand elements, by discussing the failed theories and false discoveries that shaped the path of scientific progress. We learn of early chemists' stubborn refusal to disregard alchemy as a legitimate practice, and of one German's supposed discovery of an elemental metal that breathed. As elements began to be created artificially in the twentieth century, we watch the discovery climate shift to favor the physicists, rather than the chemists. Along the way, Fontani, Costa, and Orna introduce us to the key figures in the development of today's periodic table, including Lavoisier and Mendeleev. Featuring a preface from Nobel Laureate Roald Hoffmann, The Lost Elements is an expansive history of the wrong side of chemical discovery-and reveals how these errors and gaffes have helped shape the table as much as any other form of scientific progress.
Author : Anonim
Publisher : Unknown
Page : 930 pages
File Size : 45,8 Mb
Release : 1950
Category : Nuclear energy
ISBN : RUTGERS:39030044056978
Author : United States. Superintendent of Documents
Publisher : Unknown
Page : 1870 pages
File Size : 55,5 Mb
Release : 1953
Category : United States
ISBN : STANFORD:36105022657550
Author : Anonim
Publisher : Unknown
Page : 1860 pages
File Size : 40,9 Mb
Release : 1941
Category : Government publications
ISBN : OSU:32437010583603
Author : U.S. Atomic Energy Commission
Publisher : Unknown
Page : 84 pages
File Size : 48,5 Mb
Release : 1950
Category : Nuclear energy
ISBN : UOM:39015095048180
Author : Eric Scerri
Publisher : OUP USA
Page : 305 pages
File Size : 43,9 Mb
Release : 2013-07-18
Category : Science
ISBN : 9780195391312
In A Tale of Seven Elements, Eric Scerri presents the fascinating history of those seven elements discovered to be mysteriously "missing" from the periodic table in 1913.
Author : United States. National Bureau of Standards
Publisher : Unknown
Page : 528 pages
File Size : 48,6 Mb
Release : 1951
Category : Chemistry
ISBN : UCR:31210010396487
Author : U.S. Atomic Energy Commission
Publisher : Unknown
Page : 464 pages
File Size : 44,5 Mb
Release : 1952
Category : Isotopes
ISBN : UOM:39015078009316
This is a technical report and as such will prove a primary interest to those concerned with the technical aspects of isotope utilization.
Author : L. E. Burkhart,W. F. Peed,E. J. Spitzer
Publisher : Unknown
Page : 10 pages
File Size : 40,5 Mb
Release : 1949
Category : Promethium
ISBN : UOM:39015086447268
The K lines of the x-ray spectra of element 61 were obtained on a transmission type spectrograph. The wavelength of the lines and the experimental method is discussed. X-ray spectra have been widely used in establishing positive identification of the elements from the time of Moseley's first investigations. It is known that x-ray spectra are simple and that wavelengths can be readily calculated from the Moseley law.
Author : Joseph Epstein
Publisher : Unknown
Page : 204 pages
File Size : 50,6 Mb
Release : 1968
Category : Radioisotopes
ISBN : STANFORD:36105024714870
Author : Anonim
Publisher : Krishna Prakashan Media
Page : 356 pages
File Size : 45,7 Mb
Release : 2024-07-02
Category : Electronic
ISBN : 8185842639
Author : Anonim
Publisher : Unknown
Page : 2044 pages
File Size : 55,9 Mb
Release : 1948
Category : Chemical engineering
ISBN : IND:30000091480693
Author : American Chemical Society
Publisher : Unknown
Page : 1982 pages
File Size : 45,6 Mb
Release : 1950-05
Category : Chemistry
ISBN : UCR:31210007381989