CHM-1020 Study Guide - Final Guide: Dichlorine Monoxide, Robert Andrews Millikan, Minnesota State Highway 1
Document Summary
Millikan created a measurement machine that placed electrons in an oil drop and sprayed them with ionizing radiation, thus giving the drops negative charges. The lower part of the plate was negative as well, so the drops were able to slowed down from their gravity fall and even reversed (because like charges repel each other). This experiment led to discover the process of measuring electrons because. Millikan found he could calculate the size of the electric field required to halt the freefall of the drops and also figure5out5the5drops"5mass5(cid:687)determined5by5their5radii5and5density(cid:688). 5finally,5the5magnitude of the mass is important because it determines how strongly an atom holds its electrons. If atoms held their electrons more loosely they would most likely not be stable, but if they held their electrons too tightly there would be less compounds or none at all, therefore, life would not be possible. Rutherford created an experiment that was to determine the structure of an atom.
