 The electron was finally isolated in 1973 with David Wineland, who continued work on trapped ions at NIST.He created the first geonium atom in 1976, which he then used to measure precise magnetic moments of the electron and positron with R. S. Van Dyck into the 1980s, work that led to his Nobel prize.In 1979 Dehmelt led a team that took the first photo of a single atom.