Frederick Soddy (1897-1956)
English scientist born in Sussex in 1897 and died in Brighton in 1956.
Studied in the University of Oxford. From 1900 to 1902 it was Chemistry assistant in the University of McGill, Montreal, where he co-worked with Rutherford. Was professor in the Universities of Glasgow and Aberdeen, and, from 1916 to 1936, was responsible for the teaching of inorganic Chemistry and Chemical-Physics in the University of Oxford. Accomplished innumerous experimental research works, being one of the first to study radioactivity; in collaboration with Rutherford, developed the theory of radioelement disintegration. In 1912 he introduced the concept of isotope and in 1921 he was awarded the Nobel Prize of Chemistry.