    henry gwyn jeffreys moseley (23 november 1887 â 10 august 1915) was an english physicist. moseley's outstanding 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 justified many concepts in chemistry by sorting the chemical elements of the periodic table of the elements in a logical order based on their physics. moseley's law advanced atomic 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. this remains the accepted model today. 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. some prominent authors have speculated that moseley could have been awarded the nobel prize in physics in 1916, had he not died in the service of the british army.ernest rutherford, "moseley, henry gwyn jeffreys", in oxford dictionary of national biography, http://www.oxforddnb.com/article/35125 .isaac asimov (1972), asimov's biographical encyclopedia of science and technology, new york: doub
1887_births 1915_deaths Alumni_of_Trinity_College,_Oxford British_Army_personnel_of_World_War_I British_military_personnel_killed_in_World_War_I English_physicists People_associated_with_the_University_of_Manchester People_educated_at_Eton_College People_from_Weymouth,_Dorset People_involved_with_the_periodic_table Royal_Engineers_officers