Discovery of Isotopes

We started a project to document the discovery of all known isotopes. The information for the isotopes are summarized for each element, including the discoverers, the laboratory and year in which it was first observed, the production method and the method of mass assignment used. Only refereed publications were considered, but unpublished reports and other various discrepancies pertaining to the discovery of individual isotopes are also discussed. The project began only recently and we will present the discoveries of the first elements summarized: arsenic, barium, cerium, einsteinium, gold, iron, krypton, silver, and vanadium.