He used voltage adjustments to make charged oil drops float
Robert Millikan measured the charge on an electron.
To do this, he built a spray to spray oil droplets. As the droplets came out of the nozzle they would become electrically charged by friction. He would then choose one of the droplets and measure the speed at which it was falling. He would then switch on an electrostatic field, and adjust it until the droplet stopped falling.
From the speed of falling (terminal velocity) he could calculate its weight. Knowing the exact electric field strength to balance this weight exactly, he could then calculate the charge on the oil droplet. He did this with many oil droplets, and found that all their charges were multiples of a common value of 1.592 × 10−19 Coulombs (the charge of a single electron). Modern scientists, however, prove that the charge of an electron is 1.602 176 53(14) x 10−19 coulombs. Probably due to Millikan's use of an inaccurate value for the viscosity of air.
Robert Andrews Millikan was able to generate a stream of oil drops with a known and uniform mass. The drops were electrically charged and then allowed to to enter through a tiny hole in the upper plate of an electrical capacitor. The voltage across the capacitor plates was altered to control the rate of the fall of the oil drop against the force of gravity. By measuring the rate of the fall of droplets and the voltage applied Millikan was able to find the charge of the electron.
Calculated the charge of the electron by doing his famous experiment called the Oil Drop Experiment
Robert Millikan determined the electrical charge of the electron.
The experiment of Millikan is called "oil drop experiment"; they studied the movement of microdrops in an electric field.
He discovered the charge of the electron.
dicovering the charge of electrons
Millikan: He discovered that the weight of an electron is 1840 times smaller than a hydrogen atom (atomis mass of 1) Thomson: Thomson was the first person to suggest the theory of the atom containing positive and negative particles, and demonstrated the latter which called electrons
Lavoisier is not known for an atomic theory.
In 1939, J. Robert Oppenheimer was the first to realize that an atomic bomb could be made as a result of nuclear fission. Prior to this, there were several scientists around the world who knew they were on the verge of discovery. It wasn't until 1945 that the first experiment was conducted.
dalton wasnt the one who experimented with gold, rutherford was the one who did the gold foil experiment.
The scattering experiment of E. Rutherford and his team lead to the disvovery of the proton and to a new atomic model. Alpha particles colliding an atom are scattered by the positive atomic nucleus containing protons.
Any, Robert Millikan determined the electrical charge of electron.
Robert A. Millikan conducted many experiments throughout his long, distinguished career. If you're referring to the famous "oil drop" experiment that measured the quantum of electric charge, Millikan and Harvey Fletcher performed that particular one in 1909.
Robert A. Millikan was the first to determine the electrical charge of the electron.
Robert A. Millikan was an American experimental physicist. He measured the charge on the electron. (minus 1.602 176 53(14) x 10−19 coulomb)
Robert A. Millikan conducted these experiments. His discoveries are instrumental to atomic and particle theory.
Millikan: He discovered that the weight of an electron is 1840 times smaller than a hydrogen atom (atomis mass of 1) Thomson: Thomson was the first person to suggest the theory of the atom containing positive and negative particles, and demonstrated the latter which called electrons
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With his oil drop experiment, R.A. Milikan attempted to learn about the quantity of change carried by an electron. His discoveries are instrumental to particle and atomic theories.
The charge and mass of an electron; I just did this question on masteringchem
He discovered that the weight of an electron is 1836 times smaller than that of a hydrogen atom (atomis mass of 1)
Lavoisier is not known for an atomic theory.
Probable you think to the Rutherford experiment.