Discovery of Electron | Cathode Rays | J. J. Thomson Experiment
802 بار بازدید -
10 ماه پیش
-
In this fully animated lecture
In this fully animated lecture you will learn how electron Discovered by cathode ray experiment. Cathode ray experiment:-
He took a glass tube, filled with gas and sealed at both ends, and is known as a cathode ray tube. There is a side tube with a vacuum pump attached to it. The pump reduces the discharge tube pressure up to 10 power negative 4 atm. It is constructed of two metal plates (which serve as electrodes), connected by a high-voltage wire to a Battery. The cathode is a negatively charged electrode, that is attached to the battery's negative terminal. The anode is a positively charged electrode, that is attached to the positive terminal of the battery. When high voltage Current was passed through the gas, shiny rays were emitted from the cathode. which traveled towards the anode. These rays were given the name of "cathode rays". because these originated from the cathode.
In 1897, Joseph John Thomson
identify cathode rays as negatively charged particles, which were later named Electrons.
In this lecture you also learn about the properties of cathode rays:-
1.These rays travel in straight lines perpendicular to the cathode surface.
2. They can cast a sharp shadow of an opaque object placed in their path.
3. They are deflected towards a positive plate in an electric field showing that they are negatively charged.
4. JJ. Thomson discovered their charge/mass (e/m) ratio.
5. Light is produced when these rays hit the walls of the discharge tube.
6. It was found that the same type of rays were emitted no matter which gas and which cathode was used in the discharge tube.
For more please visit complete video.
#discoveryofelectron
#electrons
#atom
#structureofatom
#chemistry
@afzaalchemist
He took a glass tube, filled with gas and sealed at both ends, and is known as a cathode ray tube. There is a side tube with a vacuum pump attached to it. The pump reduces the discharge tube pressure up to 10 power negative 4 atm. It is constructed of two metal plates (which serve as electrodes), connected by a high-voltage wire to a Battery. The cathode is a negatively charged electrode, that is attached to the battery's negative terminal. The anode is a positively charged electrode, that is attached to the positive terminal of the battery. When high voltage Current was passed through the gas, shiny rays were emitted from the cathode. which traveled towards the anode. These rays were given the name of "cathode rays". because these originated from the cathode.
In 1897, Joseph John Thomson
identify cathode rays as negatively charged particles, which were later named Electrons.
In this lecture you also learn about the properties of cathode rays:-
1.These rays travel in straight lines perpendicular to the cathode surface.
2. They can cast a sharp shadow of an opaque object placed in their path.
3. They are deflected towards a positive plate in an electric field showing that they are negatively charged.
4. JJ. Thomson discovered their charge/mass (e/m) ratio.
5. Light is produced when these rays hit the walls of the discharge tube.
6. It was found that the same type of rays were emitted no matter which gas and which cathode was used in the discharge tube.
For more please visit complete video.
#discoveryofelectron
#electrons
#atom
#structureofatom
#chemistry
@afzaalchemist
10 ماه پیش
در تاریخ 1402/06/07 منتشر شده
است.
802
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