When Rutherford returned to his research in 1917, he wrote to Niels Bohr in December saying the he was “trying to break up the atom”, which he urged Bohr to regard as “private”. Rutherford studied ...

Working with Hans Geiger and and Ernest Marsden in Manchester, Rutherford (who had already received the Nobel Prize for Chemistry for his work on the transmutation of atoms) devised an experiment ...