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What experiment did Robert Millikan do to changed atomic theory?
Wiki User
∙ 13y ago
He used voltage adjustments to make charged oil drops float
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoRobert 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.
Wiki User
∙ 13y agoRobert 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.
Wiki User
∙ 13y agoCalculated the charge of the electron by doing his famous experiment called the Oil Drop Experiment
Wiki User
∙ 13y agoWiki User
∙ 10y agoRobert Millikan determined the electrical charge of the electron.
Wiki User
∙ 6y agoThe experiment of Millikan is called "oil drop experiment"; they studied the movement of microdrops in an electric field.
Wiki User
∙ 8y agoHe discovered the charge of the electron.
Emilio Palacios
Wiki User
∙ 13y agodicovering the charge of electrons
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Robert millikan's major contributions to the atomic 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
What experiment did Antoine Lavoisier do for his atomic theory?
Lavoisier is not known for an atomic theory.
How was atomic bomb made?
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.
What experiment did daltons use for his atomic theory?
dalton wasnt the one who experimented with gold, rutherford was the one who did the gold foil experiment.
What is the scattering 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.
What was Robert Millikan's major contribution to the atomic number?
Any, Robert Millikan determined the electrical charge of electron.
When did Robert Millikan contribute to atomic theory?
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. Millikans contributions to the atomic theory?
Robert A. Millikan was the first to determine the electrical charge of the electron.
What did Millikan Contributed at the atomic structure?
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)
Who conducted experiments to determine the quantity of charge caried by an electron?
Robert A. Millikan conducted these experiments. His discoveries are instrumental to atomic and particle theory.
Robert millikan's major contributions to the atomic 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
Millikan atomic model?
Burat kc siya
Who conducted experiments to determine the quantity of charge carried by electron?
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.
Based on the data gathered in Millikan's oil-drop experiments the concept of atomic structure was modified Which of the following aspects of the structure of atom was validated by these experiment?
The charge and mass of an electron; I just did this question on masteringchem
What did Millikan contribute to atomic theory?
He discovered that the weight of an electron is 1836 times smaller than that of a hydrogen atom (atomis mass of 1)
What experiment did Antoine Lavoisier do for his atomic theory?
Lavoisier is not known for an atomic theory.
What experiment was uses to develop the atomic structure?
Probable you think to the Rutherford experiment.
