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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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18 jul 1932 año - 1932 James Chadwick discovers the neutron which helps balance out the protons in the nucleus
Añadido al timeline:
Physics Atom Timeline
By
Marc-Anthony George
1 nov 2017
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fecha:
18 jul 1932 año
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~ 93 years ago
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