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1 gen 1932 anni - Source
Descrizione:
Subatomic Particles - Neutrons http://science.jrank.org/pages/6554/Subatomic-Particles-Neutrons.html
Aggiunto al nastro di tempo:
19 set 2017
0
0
484
Atom Theory History - Thomas Evenson
Pre-AP Chemistry, 2nd period, Pope
Data:
1 gen 1932 anni
Adesso
~ 92 years ago