1. Core constituents. Its stability
1.1 General
A small structure at the heart of the atom (figure 1 a), the nucleus is an extraordinarily dense medium made up of protons and neutrons (figure 1 b). Its existence was established by Lord Rutherford in 1911, following experiments involving the scattering of α particles (nuclei from radioactive emitters). After its discovery, it took some twenty years...
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Core constituents. Its stability
The core quantum system
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