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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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18 apr 1932 anni - James Chadwick (1932): discovers existence of Neutrons, which have a similar mass to protons
Aggiunto al nastro di tempo:
Atomic Timeline
By
MILLER GRIMSLEY
17 set 2018
0
0
407
Data:
18 apr 1932 anni
Adesso
~ 93 years ago
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