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20th century scientists found why properties of elements reoccur periodically (11 ore 55 min, 1 gen 1900 anni – 14 ore 57 min, 31 dic 1999 anni)
Aggiunto al nastro di tempo:
26 dic 2017
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History of the Periodic Table
Data:
11 ore 55 min, 1 gen 1900 anni
14 ore 57 min, 31 dic 1999 anni
~ 100 years
Immagini:
