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Sir Joseph Thomson (J.J. Thomson) determined the charge of the electron in 1897, calling them "corpuscles." Previously electron beams had been referred to as Lenard rays and cathode rays.
J.J. Thompson with his cathod ray tube experiment.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThis was first measured by Millikan.
I'll just tell you and you can read more here, his name was J. J. Thompson, and it was an awesome experiment, that ultimately (after many years of course) led to the development of the old Cathod Ray Tube televisions, ie the cathod ray is usually a subatomic particle with a give charge. Thompson fired these particles, which he called corpuscles, from his invention into a magnetic field, by measuring the deflection he could the determine, albeit classically but he was still relatively accurate, the charge of an electron, given his detectors where in the right place of course,
I believe he used: F = qv x B to find the charge q.
Cheers,
and read this for more: http://en.wikipedia.org/wiki/J._J._Thomson
Wiki User
∙ 12y agoBetween 1908 and 1910, Robert Millikan determined the magnitude of the electric charge on a single electron. The experiment he used was named "Millikan's oil drop experiment".
Wiki User
∙ 12y agoRobert Millikan determined the magnitude of the electric charge on a single electron. The experiment he used was named "Millikan's oil drop experiment".
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∙ 8y agoAdd your answer:
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What is the measure of electrical energy an electron carries?
The charge on an electron can be measured as -1e, or -1.602 176 487(40) * 10^-19 Coulombs.Energy of an electron is usually measured in electron Volts (eV). This dimensionally is the same as Joules (energy). The unit Volt is Joules per Coulomb (energy/charge).
What would the charge be if an atom gains an electron and why?
Every electron has a charge of minus one. If a neutral atom acquires an additional electron, then it also acquires the charge of that electron, and will have a net charge of minus one.
Why hole has positive charge?
A hole is a place where an electron is missing. Since the electron has a negative charge, the lack of an electron produces a net positive charge.
What is the charge and mass of a electron?
The charge of an electron is -1. Specifically, it is about -1.602 x 10-19 coulombs. The mass of an electron is about 9.109 x 10-31 kilograms, or about one 1836th that of a proton.
What is the charge on an electron in SI units?
A neutron has no charge (neutron-neutral). It is simply there for weight.
The charge on an electron?
An electron has a negative charge. Protons are positively charged, and neutrons have no charge. ************************* The charge is measured at 1.60217646 × 10-19 Coulombs.
What is the measure of electrical energy an electron carries?
The charge on an electron can be measured as -1e, or -1.602 176 487(40) * 10^-19 Coulombs.Energy of an electron is usually measured in electron Volts (eV). This dimensionally is the same as Joules (energy). The unit Volt is Joules per Coulomb (energy/charge).
What was Robert Millikan's theory?
Robert Millikan measured the electrical charge of the electron.
Which scientist measured the charge on an electron as 1.602 10-19 coulombs?
Robert Millikan
How did Millikans experiment change your view on atoms?
Millikan measured the first the electrical charge of an electron.
Who determined the charge on a single electron?
the charge of either a single proton, or the absolute charge of a single electron is approximately 1.602176487(40)×10−19 coulombs .The magnitude of the elementary charge was first measured in Robert A. Millikan's noted oil drop experiment in 1909
What type of charge do electrons have?
The charge of an electron is -1, and has a smaller mass of a proton. (For you Castle Learning users) :]negative chargeAn electron carries one fundamental unit of negative charge*, measured to be about 1.609 x 10-19 Coulombs.(* The negative designation is a convention, established in the earliest experiments with electricity long before the existence of the electron was known.)A proton has a +1 charge.A neutron does not have a charge, it is neutral.
An electron has a charge of what?
The charge of an electron is -1, and has a smaller mass of a proton. (For you Castle Learning users) :]negative chargeAn electron carries one fundamental unit of negative charge*, measured to be about 1.609 x 10-19 Coulombs.(* The negative designation is a convention, established in the earliest experiments with electricity long before the existence of the electron was known.)A proton has a +1 charge.A neutron does not have a charge, it is neutral.
What part of the atom has a negative charge is the?
Electron Carries A Negative Charge.
What units can be used to measure charge?
Electric charge is usually measured in Coloumbs.Electric charge is usually measured in Coloumbs.Electric charge is usually measured in Coloumbs.Electric charge is usually measured in Coloumbs.
Does an electron or proton have a larger charge?
No. The electron and proton have the same amount of charge. Its just that the electron's charge is negative and the proton's charge is positive.
Is the charge of a electron always equal to the charge on a neutron?
The charge on an electron is never equal to the charge on a neutron. An electron carries one negative charge and a neutron has no net charge.
