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24 lugl 1932 anni - James Chadwick

Descrizione:

The atom was believed to be composed of a positively charged nucleus surrounded by negatively charged electrons. James Chadwick bombarded beryllium atoms with alpha particle and then an unknown radiation was produced.

Aggiunto al nastro di tempo:

Atomic Timeline

ByTrinity Johnson
27 set 2018

Data:

24 lugl 1932 anni
Adesso
~ 91 years ago
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