For other people named Henry Moseley, see Henry Moseley (disambiguation).
Henry Moseley
Moseley in 1914
Born
Henry Gwyn Jeffreys Moseley
(1887-11-23)23 November 1887
Weymouth, Dorset, England
Died
10 August 1915(1915-08-10) (aged 27)
Gallipoli, Ottoman Empire
Cause of death
Killed in action
Education
Summer Fields School Eton College
Alma mater
Trinity College, Oxford University of Manchester
Known for
Atomic number, Moseley's law
Awards
Matteucci Medal (1919)
Scientific career
Fields
Physics, chemistry
Henry Gwyn Jeffreys Moseley (/ˈmoʊzli/; 23 November 1887 – 10 August 1915) was an English physicist, whose contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number. This stemmed from his development of Moseley's law in X-ray spectra.
Moseley's law advanced atomic physics, nuclear physics and quantum physics by providing the first experimental evidence in favour of Niels Bohr's theory, aside from the hydrogen atom spectrum which the Bohr theory was designed to reproduce. That theory refined Ernest Rutherford's and Antonius van den Broek's model, which proposed that the atom contains in its nucleus a number of positive nuclear charges that is equal to its (atomic) number in the periodic table.[1][2]
When World War I broke out in Western Europe, Moseley left his research work at the University of Oxford behind to volunteer for the Royal Engineers of the British Army. Moseley was assigned to the force of British Empire soldiers that invaded the region of Gallipoli, Turkey, in April 1915, as a telecommunications officer. Moseley was shot and killed during the Battle of Gallipoli on 10 August 1915, at the age of 27. Experts have speculated that Moseley could otherwise have been awarded the Nobel Prize in Physics in 1916.[3][4]
^Rutherford, E. (1911). "The scattering of α and β particles by matter and the structure of the atom". Philosophical Magazine. 6th series. 21 (125): 669–688.
^Broek, A. van den (1913). "Die Radioelemente, das periodische System und die Konstitution der Atome" [Radio-elements, the periodic system, and the constitution of atoms]. Physikalische Zeitschrift (in German). 14: 32–41.
^Rutherford, Ernest. "Moseley, Henry Gwyn Jeffreys". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/35125. (Subscription or UK public library membership required.)
^Asimov, Isaac (1982). "1121. MOSELEY, Henry Gwyn-Jeffreys". Asimov's Biographical Encyclopedia of Science and Technology (2nd revised ed.). New York etc.: Doubleday. pp. 713–714.
Henry Gwyn Jeffreys Moseley (/ˈmoʊzli/; 23 November 1887 – 10 August 1915) was an English physicist, whose contribution to the science of physics was...
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outstanding early-career contributions to theoretical physics. The HenryMoseley Medal and Prize is awarded for exceptional early career contributions...
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that iodine can be in the same column as the other halogens. In 1913, HenryMoseley discovered that atoms of each element, when excited, emit X-rays at...
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of them is named Maclaren, after the Founder; the others are Moseley, after HenryMoseley, Congreve, after William La Touche Congreve, and Case, after...
same year, English physicist HenryMoseley using X-ray spectroscopy confirmed van den Broek's proposal experimentally. Moseley determined the value of the...
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was no mention of it any place. The great change came from Moseley." In 1913, HenryMoseley found an empirical relationship between the strongest X-ray...
hypothesis was published in 1911 and inspired the experimental work of HenryMoseley, who found good experimental evidence for it by 1913. Van den Broek...
was confirmed experimentally by HenryMoseley in 1913 using X-ray spectra (More details in Atomic number under Moseley's 1913 experiment). In 1917, Rutherford...
den Broek, and later confirmed experimentally within two years, by HenryMoseley. These are the key indicators: The atom's electron cloud does not (substantially)...
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British physicist HenryMoseley considered a possible correlation between X-ray emissions and physical properties of elements. Moseley, along with Charles...
on by his students, the Danish physicist Niels Bohr, the Englishman HenryMoseley and the German Otto Hahn, who went on to father the emerging nuclear...
inertness of argon suggested a placement before the reactive alkali metal. HenryMoseley later solved this problem by showing that the periodic table is actually...
(1966), "The Work of H. G. J. Moseley", Isis, 57 (3): 336–364, doi:10.1086/350143, JSTOR 228365, S2CID 144765815 Moseley, Henry G. J. (1913). "The High Frequency...
hydrogen's nuclear charge, was about half its atomic weight. In 1913, HenryMoseley discovered that the frequency of X-ray emissions from an excited atom...
commission was named for the author of its final report, magistrate HenryMoseley. The Royal Commission was set up to examine proposals to extend the...
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