in 1915 while working at the university of Manchestor. Henry Moseley discovered that there was a relation between atomic number and wavelength by measuring the x-ray spectra. before this atomic number was thought of as a random number given to the element. this is now known as Moseley's law. Moseley gave the scientific basis for the periodic table
Born in Weymouth, Dorset on the southwestern coast of England november 23 1887
graduated from Trinity College,
served in the British army,
died august 10 1915 when he was shot during the battle of Gallipoli.
citation-"Henry Moseley." Famous Scientists. N.p., n.d. Web. 11 Oct. 2014. <http://www.famousscientists.org/henry-moseley/>.