Question

Write about Discovery of electron.....

Answer 1

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Electron was discovered by William Crooke . He noted that gases are ordinarily poor conductors of electricity. However , when a high voltage of (10000 volts ) charge from an induction coil is applied on tubes filled with gases at very low pressure ,the gases become good conductors of electricity and begin to flow from cathode to anode in the form of rays . Since these rays originate from the negative plate and has an negative charge ,they are now called electrons.( Mass : 9.108 * 10^-31 kg , Radius : 1 * 10^-15 m)

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Answer 2

the electron, is a constituent of all the matter we are surrounded by. All atoms are made of a nucleus and electrons.it was discovered by J.J.Thomson in 1897.


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