Electron was discovered by

Chadwick

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Thomson

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Goldstein

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Bohr

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Solution

The correct option is B
Thomson

Explanation for correct option
(B) J.J. Thomson in 1897 discovered an electron by cathode ray experiment.
Explanation for incorrect option
(A) Chadwick in 1932 discovered the existence of neutrons.
(C) Goldstein in 1886. discovered evidence for the existence of positively charged species.
(D) Bohr proposed the atomic model of an atom in which electrons occupy the specific energy path called as orbits.
Thus, J.J. Thomson in 1897 discovered an electron by cathode ray experiment.
Therefore, Option (B) Thomson is correct answer.

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Similar questions

Why was neutron discovered so late (in 1932 by James Chadwick) as opposed to protons and electrons which were discovered much earlier?

The subatomic particle called electron was discovered by :

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(d) E. Goldstein

When was the electron and the proton discovered?

The subatomic particle called electron was discovered by:

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