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Describe at least four properties of electrons that were determined based on experiments of Thomson and Millikan?
two properties are mass and charge... I haven't found any more. sorry
How was it proved that electrons are fundamental particles of an atom?
Electrons were proven to be fundamental particles through a series of experiments, notably J.J. Thomson's cathode ray experiments in 1897, where he demonstrated that cathode rays were composed of negatively charged particles, later named electrons. Further evidence came from Robert Millikan's oil drop experiment, which measured the charge of an electron, confirming its discrete nature. Additionally, quantum mechanics and particle physics have established that electrons are elementary particles, not composed of smaller constituents, thus solidifying their status as fundamental components of atoms.
The work of what two scientists was most important in determining the mass of an eletron?
The work of J. J. Thomson and Robert Andrews Millikan were most important in determining the mass of an electron. Thomson discovered the electron through his experiments on cathode rays, while Millikan conducted the oil drop experiment, which helped to calculate the charge and mass of the electron.
Which of the following is Robert Millikan credited with discovering?
Robert Millikan is credited with the discovery of the elementary electronic charge through his oil drop experiment.
Who identified electrons to have a negative charge?
J.J. Thomson is credited with identifying electrons to have a negative charge through his experiments with cathode rays in the late 19th century.
What was the scientist name who discovered the electrons charge?
The scientist who discovered the charge of electrons was J.J. Thomson. He determined the charge-to-mass ratio of electrons through his experiments with cathode rays in the late 19th century.
Did Dalton discover electrons?
No, John Dalton did not discover electrons. The existence of electrons was proposed by J.J. Thomson in 1897 through his experiments on cathode rays. Dalton, on the other hand, is known for his work on atomic theory in the early 19th century.
Is Millikan high school's Quest program hard?
yes you can use the word through in a sentence.
Who discovered that an electron has a mass that is very small compared to the size of the atom?
J.J. Thomson discovered that the electron has a very small mass compared to the size of the atom through his experiments with cathode rays in the late 19th century. His work led to the development of the plum pudding model of the atom.
Why did different drops have different charges in millikans oil drop experiment?
Different drops had different charges in Millikan's oil drop experiment because they gained or lost electrons as they moved through the chamber, leading to variations in their net charge. This variability in charge allowed Millikan to observe different electrostatic forces acting on the drops and calculate the charge of a single electron.
Which scientist measured the charge on an electron as 1.602 10-19 coulombs?
Robert A. Millikan measured the charge on an electron as 1.602 x 10^-19 coulombs through his famous oil drop experiment.
Who discovered that the proton is 1837 times that of the electron?
The discovery that the proton is approximately 1837 times the mass of the electron is attributed to physicist Robert Millikan. He conducted experiments in the early 20th century, including the famous oil drop experiment, which allowed for precise measurements of the charge of the electron. By combining this information with the known mass of the electron, Millikan helped establish the relative mass of the proton. This ratio has since been confirmed and refined through various experimental methods.
