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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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4 gen 1890 anni - 9) a new set of elements, the noble gases, were added to the table
Aggiunto al nastro di tempo:
Kashif,Aaron,Felix,Nestor
By
Kashif Naseer
25 ott 2017
0
0
570
Data:
4 gen 1890 anni
Adesso
~ 135 years ago
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