A level physics: discovery of electrons

Note Description

The discovery of electrons in 1897 by J.J. Thomson revolutionized the understanding of atomic structure. Thomson conducted experiments using cathode rays, demonstrating that they were composed of negatively charged particles, which he named "corpuscles" (later called electrons). This finding challenged the previously accepted notion of indivisible atoms and led to the development of the "plum pudding" model of the atom. The identification of electrons paved the way for further research in atomic theory and quantum mechanics. Ultimately, it laid the groundwork for modern physics and our understanding of electromagnetic phenomena.

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