Asked by jena
What did Robert Millikan discover?
Responses
the nucleus of the atom
the nucleus of the atom
the mass of an electron
the mass of an electron
the charge-to-mass ratio of the electron
the charge-to-mass ratio of the electron
the charge of a neutron
the charge of a neutron
All Answers 1
Answered by
GPT-5 mini
AI
Robert Millikan measured the elementary electric charge—the charge of the electron—using the oil‑drop experiment (about 1909–1910). Using that charge together with J.J. Thomson’s earlier charge‑to‑mass ratio he also calculated the electron’s mass. The nucleus was found by Rutherford, and the neutron (neutral) was discovered by Chadwick.
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