After his PhD, Bohr worked briefly in the lab of JJ Thomson before moving to Rutherford's lab in Manchester to study radioactivity. He arrived just after Rutherford completed his proposal of a compact nuclear core for atoms. Charles Galton Darwin, also at Manchester, had just completed an analysis of alpha particle energy loss in metals, concluding the electron collisions where the dominant cause of loss. Bohr showed in a subsequent paper that Darwin's results would improve by accounting for electron binding energy. Importantly this allowed Bohr to conclude that hydrogen atoms have a single electron.
after his phd bohr worked briefly in the lab of jj thomson before moving to rutherford's lab in manchester to study radioactivity he arrived just after rutherford completed his proposal of a compact nuclear core for atoms charles galton darwin also at manchester had just completed an analysis of alpha particle energy loss in metals concluding the electron collisions where the dominant cause of loss bohr showed in a subsequent paper that darwin's results would improve by accounting for electron binding energy importantly this allowed bohr to conclude that hydrogen atoms have a single electron