death_place death_date birth_place nationality fields birth_date known_for article_title name
alamo , california 23 february 1973 salt lake city , utah american chemistry 23 september 1920 co-discovery of curium , americum ralph a. james
 ralph arthur james
ralph a. james

ralph arthur james -lrb- salt lake city , utah , 23 september 1920 -- alamo , california , 24 february 1973 -rrb- was a chemist at the university of chicago who co-discovered the elements curium -lrb- 1944 -rrb- and americum -lrb- 1944 -- 1945 -rrb- .
later he worked at ucla and at the lawrence livermore laboratory in california .
he also worked on niobium and nuclear spectroscopy .
