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Henry Gwyn Jeffreys Moseley (/ ˈ m oʊ z l i /; 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.
Henry Moseley, English physicist who experimentally demonstrated that the major properties of an element are determined by the atomic number, not by the atomic weight, and firmly established the relationship between atomic number and the charge of the atomic nucleus.
- The Editors of Encyclopaedia Britannica
Feb 7, 2024 · Henry Moseley established the concept of the atomic number and helped scientists first understand the structure of the atom. Credit: Courtesy of the Smithsonian Archives. Physicist Henry Moseley did not have to fight for his country in World War I.
- Miral Dizdaroglu
Learn about Henry Moseley, a brilliant experimental physicist who proved that the number of protons in an atom determines its identity and position in the periodic table. Discover his life, achievements, discoveries and legacy in this comprehensive biography.
Just over 100 years ago, Henry Moseley carried out a systematic series of experiments which showed that the frequencies of the X-rays emitted from an elemental target under bombardment by cathode rays were characteristic of that element and could be used to identify the charge on its atomic nucleus.
- Russell G Egdell, Elizabeth Bruton
- 2020
Apr 7, 2020 · Patriotism and social expectations drove Henry Moseley to volunteer for the war, as they had for many of his upper-class peers. Later dubbed the “Lost Generation,” these officers died at almost twice the rate of other British soldiers.
Oct 1, 2020 · Henry (“Harry”) Gwin Jeffreys Moseley (1887–1915) was, or perhaps would have been, the pin-up scientist of a world entering the atomic age.
