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3 gen 1913 anni - Frederick Soddy proposes the concept of isotopes, that elements with the same chemical properties may have different atomic weight
Aggiunto al nastro di tempo:
Atomic Theory - Jessica Ashton
By
Jess Ashton
27 set 2017
0
0
979
Data:
3 gen 1913 anni
Adesso
~ 111 years ago
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