PPT Slide
- Millikan found that the charges on all droplets were some whole-number multiple of a minimum charge.
- Oil droplets could pick up different numbers of electrons, so this minimum charge must be that of one electron.
- Millikanís value is within 1% of the modern value of the electronís charge, 1.602 x 10 19 C (coulomb)
- From the electronís mass/charge ratio (Thomson) and the electronís charge, Millikan determined the electronís mass:
Notes: