Multiple choice

Electron was discovered by

  1. J.J.Thomson

  2. Daniel Rutherford

  3. J.Kepler

  4. James Chadwick
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A Correct answer
Explanation

J.J. Thomson discovered the electron in 1897 through cathode ray tube experiments, demonstrating that cathode rays were negatively charged particles much lighter than atoms. His 'plum pudding' model proposed electrons embedded in positive charge. This earned him the 1906 Nobel Prize in Physics.

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