What equipment did JJ Thomson use?

What equipment did JJ Thomson use?

In his most famous experiments, J.J. Thomson used a cathode ray tube and electric plates.

What experiment did JJ Thomson use to make his discovery?

Development of the Atomic Theory. In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged.

How did Thomson use the cathode ray tube in his research?

Researchers realized that something was traveling from the anode when objects placed in the tube in front of it could cast a shadow on the glowing wall. Thomson used the cathode ray tube to determine that atoms had small negatively charged particles inside of them, which he called “electrons.”

What did Thomson conclude from his experiment cathode ray tube?

In Thomson’s first experiment, he discovered that cathode rays and the charge they deposited were intrinsically linked together. In the second experiment, he discovered that the charge in the cathode rays was negative. He deduced that the cathode rays were made up of negatively-charged particles.

Which fluorescent material was used in Thomson’s cathode ray experiment?

Cathode Ray Tube Thomson designed a glass tube that was partly evacuated, i.e. all the air had been drained out of the building. He then applied a high electric voltage at either end of the tube between two electrodes.

What experiment did JJ Thomson use to discover the electron?

The Discovery of the Electrons. The Electron was discovered in 1896, by the British physicist J. J. Thomson, using a cathode rays while doing discharge tube experiments. Thomson also determined e/m, ratio of the charge e to the mass m of the material particle which constituted these rays.

What subatomic particle did JJ Thomson discover?

J.J. Thompson discovered a subatomic particle called electron. It was discovered in 1897 while he was experimenting with a cathode ray tube .

What is the conclusion of JJ Thomson experiment?

Conclusion. After completing the experiment J.J. Thomson concluded that rays were and are basically negatively charged particles present or moving around in a set of a positive charge . This theory further helped physicists in understanding the structure of an atom. And the significant observation that he made was that the characteristics of cathode rays or electrons did not depend on the material of electrodes or the nature of the gas present in the cathode ray tube.

When did JJ Thomson conduct his experiment?

Sir Joseph John Thomson, a British physicist, discovered the electron in 1897. In experiments studying electric discharge in cathode tubes, he noted a high value for the ratio of charge to mass. His observation led him to identify the first subatomic particle, the electron.