Ernest+Rutherford

Ernest Rutherford (1871-1937) was a consummate experimentalist. He was responsible for many remarkable series discoveries in the fields of nuclear physics. He discovered the alpha and beta rays, set the laws of radioactive decay, and identified alpha particles such as helium nuclei.

His most important discover was the nuclear structure of the atom. He experimented in his laboratory that when the alpha particles are fired into gas atoms, a few are violently deflected, which a dense, positively charged central region containing most atomic mass.

Through out his career he come up with amazing discoveries and received a Noble Prize in Chemistry in 1908.



http://www.chemheritage.org/discover/online-resources/chemistry-in-history/themes/atomic-and-nuclear-structure/rutherford.aspx