Question

Julius plucker contribution
William Crookes contribution
Eugen Goldstein contribution
Wilhelm Roentgen contribution
James Chadwick contribution​

Answer 1

Answer:

Julius plucker contribution:-

He made fundamental contributions to the field of analytical geometry and was a pioneer in the investigations of cathode rays that led eventually to the discovery of the electron. He also vastly extended the study of Lamé curves.

William Crookes contribution:-

The Discovery of the Electron (William Crookes)

The definitive experiments with cathode-ray tubes were done by William Crookes in 1879. Crookes' major contribution was the development of a better vacuum pump that allowed him to produce cathode-ray tubes with a smaller residual gas pressure

Eugen Goldstein contribution:-

Eugene Goldstein (1850-1930) was a German Physicist that discovered that protons have an equal and opposite charge as an electron. He used cathodes rays and at the same time discovered canal rays. Canal rays are the opposite from Cathode rays.

Wilhelm Roentgen contribution:-

In 1895, Wilhelm Roentgen, experimenting with cathode rays, discovered new and different kinds of rays. Roentgen discovered that if he directed these rays toward a paper plate coated with barium platinocyanide, the plate became fluorescent. ... We know them today as x-rays which are part of the electromagnetic spectrum.

James Chadwick contribution​:-

James Chadwick is best known for his discovery of the neutron in 1932. A neutron is a particle with no electric charge that, along with positively charged protons, makes up an atom's nucleus. Bombarding elements with neutrons can succeed in penetrating and splitting nuclei, generating an enormous amount of energy.

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