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How did Robert Millikan contribute to atomic theory?
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Who was Robert Millikan?
How did Robert Millikan prove that electrons have a fixed charge?
Nov 21, 2023 · Robert Millikan was an American scientist who earned a Ph.D. in physics from Columbia university and made many important contributions to our understanding of atomic theory and electric charge.
- How did Robert Millikan change the atomic model?Prior to Robert Millikan's famous oil drop experiment, in which he measured the charge on a single electron, it was not known if electrons even had...
- What 3 things did Millikan discover?Robert Millikan made many contributions to our understanding of physics. He is famous for measuring the value of the elementary charge in the oil d...
- What was Robert Millikan's discovery?Robert Millikan is most well known for discovering value of the elementary charge, which is the charge on a single electron. He measured the elemen...
In 1909, more information about the electron was uncovered by American physicist Robert A. Millikan via his “oil drop” experiments. Millikan created microscopic oil droplets, which could be electrically charged by friction as they formed or by using X-rays.
In 1909, more information about the electron was uncovered by American physicist Robert A. Millikan via his “oil drop” experiments. Millikan created microscopic oil droplets, which could be electrically charged by friction as they formed or by using X-rays.
Millikan, in spite of the fact that Pupin—to Robert's horror—took no stock in the atomic theory of matter. Following the receipt of his doctor's degree in 1895 Millikan de-cided on Pupin's insistence—"and since a satisfactory job did not appear"—to study in Germany. It was a fortunate time to be study-
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- 2016
- (a) J. J. Thomson produced a visible beam in a cathode ray tube. (b) This is an early cathode ray tube, invented in 1897 by Ferdinand Braun. (c) In the cathode ray, the beam (shown in yellow) comes from the cathode and is accelerated past the anode toward a fluorescent scale at the end of the tube.
- Millikan’s experiment measured the charge of individual oil drops. The tabulated data are examples of a few possible values.
- (a) Thomson suggested that atoms resembled plum pudding, an English dessert consisting of moist cake with embedded raisins (“plums”). (b) Nagaoka proposed that atoms resembled the planet Saturn, with a ring of electrons surrounding a positive “planet.”
- Geiger and Rutherford fired α particles at a piece of gold foil and detected where those particles went, as shown in this schematic diagram of their experiment.
In 1909, more information about the electron was uncovered by American physicist Robert A. Millikan via his “oil drop” experiments. Millikan created microscopic oil droplets, which could be electrically charged by friction as they formed or by using X-rays.
Feb 16, 2023 · Millikan’s oil-drop experiment helped firmly establish that electrons are discrete particles, a claim that was under significant dispute at the time, and gave credence to Niels Bohr's quantum theory of the atom.
