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1 gen 1829 anni - Johann Dobereiner
Descrizione:
Johann Dobereiner was aware of 40 elements. He was able to see that some groups of three elements had similar properties and he named these groups 'triads'.
Aggiunto al nastro di tempo:
Periodic Table History Timeline
By
Connor Matkovic
1 feb 2018
0
0
329
Data:
1 gen 1829 anni
Adesso
~ 195 years ago
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